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Simplified C global variables
This commit is contained in:
Graham Nelson
parent
05478d28e4
commit
76d2e5d70c
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@ -414,11 +414,11 @@ but for now about 10 layers is plenty.
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</p>
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<pre class="displayed-code all-displayed-code code-font">
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<span class="reserved-syntax">segmentation_pos</span><span class="plain-syntax"> </span><span class="function-syntax">CodeGen::select</span><button class="popup" onclick="togglePopup('usagePopup10')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup10">Usage of <span class="code-font"><span class="function-syntax">CodeGen::select</span></span>:<br/>Generating Inform 6 - <a href="4-fi6.html#SP4_1">§4.1</a>, <a href="4-fi6.html#SP4_2">§4.2</a>, <a href="4-fi6.html#SP5">§5</a><br/>Inform 6 Constants - <a href="4-i6c.html#SP3_1">§3.1</a>, <a href="4-i6c.html#SP3_2">§3.2</a>, <a href="4-i6c.html#SP6">§6</a><br/>Inform 6 Global Variables - <a href="4-i6gv.html#SP2_1">§2.1</a>, <a href="4-i6gv.html#SP2_2">§2.2</a>, <a href="4-i6gv.html#SP2_3">§2.3</a>, <a href="4-i6gv.html#SP2_4">§2.4</a><br/>Inform 6 Objects - <a href="4-i6o.html#SP4_3">§4.3</a>, <a href="4-i6o.html#SP4_4">§4.4</a>, <a href="4-i6o.html#SP4_5">§4.5</a>, <a href="4-i6o.html#SP4_6">§4.6</a>, <a href="4-i6o.html#SP5_1">§5.1</a>, <a href="4-i6o.html#SP9">§9</a>, <a href="4-i6o.html#SP13_1">§13.1</a>, <a href="4-i6o.html#SP13_2">§13.2</a>, <a href="4-i6o.html#SP13_3">§13.3</a><br/>Inform 6 Code - <a href="4-i6c2.html#SP2">§2</a>, <a href="4-i6c2.html#SP9">§9</a><br/>Final C - <a href="5-fnc.html#SP5_2">§5.2</a>, <a href="5-fnc.html#SP5_3">§5.3</a>, <a href="5-fnc.html#SP6_1">§6.1</a><br/>C Global Variables - <a href="5-cgv.html#SP1">§1</a>, <a href="5-cgv.html#SP2">§2</a><br/>C Memory Model - <a href="5-cmm.html#SP3">§3</a>, <a href="5-cmm.html#SP4">§4</a>, <a href="5-cmm.html#SP11">§11</a>, <a href="5-cmm.html#SP11_2">§11.2</a>, <a href="5-cmm.html#SP12">§12</a>, <a href="5-cmm.html#SP15">§15</a><br/>C Object Model - <a href="5-com.html#SP1_5">§1.5</a>, <a href="5-com.html#SP2">§2</a>, <a href="5-com.html#SP3">§3</a>, <a href="5-com.html#SP4">§4</a>, <a href="5-com.html#SP7">§7</a>, <a href="5-com.html#SP1_6">§1.6</a>, <a href="5-com.html#SP1_7">§1.7</a>, <a href="5-com.html#SP1_8">§1.8</a>, <a href="5-com.html#SP8">§8</a><br/>C Function Model - <a href="5-cfm.html#SP1">§1</a><br/>C Literals - <a href="5-clt.html#SP1">§1</a>, <a href="5-clt.html#SP2">§2</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">code_generation</span><span class="plain-syntax"> *</span><span class="identifier-syntax">gen</span><span class="plain-syntax">, </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">i</span><span class="plain-syntax">) {</span>
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<span class="reserved-syntax">segmentation_pos</span><span class="plain-syntax"> </span><span class="function-syntax">CodeGen::select</span><button class="popup" onclick="togglePopup('usagePopup10')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup10">Usage of <span class="code-font"><span class="function-syntax">CodeGen::select</span></span>:<br/>Generating Inform 6 - <a href="4-fi6.html#SP4_1">§4.1</a>, <a href="4-fi6.html#SP4_2">§4.2</a>, <a href="4-fi6.html#SP5">§5</a><br/>Inform 6 Constants - <a href="4-i6c.html#SP3_1">§3.1</a>, <a href="4-i6c.html#SP3_2">§3.2</a>, <a href="4-i6c.html#SP6">§6</a><br/>Inform 6 Global Variables - <a href="4-i6gv.html#SP2_1">§2.1</a>, <a href="4-i6gv.html#SP2_2">§2.2</a>, <a href="4-i6gv.html#SP2_3">§2.3</a>, <a href="4-i6gv.html#SP2_4">§2.4</a><br/>Inform 6 Objects - <a href="4-i6o.html#SP4_3">§4.3</a>, <a href="4-i6o.html#SP4_4">§4.4</a>, <a href="4-i6o.html#SP4_5">§4.5</a>, <a href="4-i6o.html#SP4_6">§4.6</a>, <a href="4-i6o.html#SP5_1">§5.1</a>, <a href="4-i6o.html#SP9">§9</a>, <a href="4-i6o.html#SP13_1">§13.1</a>, <a href="4-i6o.html#SP13_2">§13.2</a>, <a href="4-i6o.html#SP13_3">§13.3</a><br/>Inform 6 Code - <a href="4-i6c2.html#SP2">§2</a>, <a href="4-i6c2.html#SP9">§9</a><br/>Final C - <a href="5-fnc.html#SP5_2">§5.2</a>, <a href="5-fnc.html#SP5_3">§5.3</a>, <a href="5-fnc.html#SP6_1">§6.1</a><br/>C Global Variables - <a href="5-cgv.html#SP2">§2</a>, <a href="5-cgv.html#SP3">§3</a>, <a href="5-cgv.html#SP3_1">§3.1</a>, <a href="5-cgv.html#SP3_2">§3.2</a>, <a href="5-cgv.html#SP3_3">§3.3</a>, <a href="5-cgv.html#SP3_4">§3.4</a><br/>C Memory Model - <a href="5-cmm.html#SP3">§3</a>, <a href="5-cmm.html#SP4">§4</a>, <a href="5-cmm.html#SP11">§11</a>, <a href="5-cmm.html#SP11_2">§11.2</a>, <a href="5-cmm.html#SP12">§12</a>, <a href="5-cmm.html#SP15">§15</a><br/>C Object Model - <a href="5-com.html#SP1_5">§1.5</a>, <a href="5-com.html#SP2">§2</a>, <a href="5-com.html#SP3">§3</a>, <a href="5-com.html#SP4">§4</a>, <a href="5-com.html#SP7">§7</a>, <a href="5-com.html#SP1_6">§1.6</a>, <a href="5-com.html#SP1_7">§1.7</a>, <a href="5-com.html#SP1_8">§1.8</a>, <a href="5-com.html#SP8">§8</a><br/>C Function Model - <a href="5-cfm.html#SP1">§1</a><br/>C Literals - <a href="5-clt.html#SP1">§1</a>, <a href="5-clt.html#SP2">§2</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">code_generation</span><span class="plain-syntax"> *</span><span class="identifier-syntax">gen</span><span class="plain-syntax">, </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">i</span><span class="plain-syntax">) {</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><a href="2-cg.html#SP10" class="function-link"><span class="function-syntax">CodeGen::select_layered</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">gen</span><span class="plain-syntax">, </span><span class="identifier-syntax">i</span><span class="plain-syntax">, </span><span class="constant-syntax">1</span><span class="plain-syntax">);</span>
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<span class="plain-syntax">}</span>
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<span class="reserved-syntax">segmentation_pos</span><span class="plain-syntax"> </span><span class="function-syntax">CodeGen::select_layered</span><button class="popup" onclick="togglePopup('usagePopup11')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup11">Usage of <span class="code-font"><span class="function-syntax">CodeGen::select_layered</span></span>:<br/>Inform 6 Constants - <a href="4-i6c.html#SP2">§2</a><br/>C Namespace - <a href="5-cnm.html#SP6">§6</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">code_generation</span><span class="plain-syntax"> *</span><span class="identifier-syntax">gen</span><span class="plain-syntax">, </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">i</span><span class="plain-syntax">, </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">layer</span><span class="plain-syntax">) {</span>
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<span class="reserved-syntax">segmentation_pos</span><span class="plain-syntax"> </span><span class="function-syntax">CodeGen::select_layered</span><button class="popup" onclick="togglePopup('usagePopup11')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup11">Usage of <span class="code-font"><span class="function-syntax">CodeGen::select_layered</span></span>:<br/>Inform 6 Constants - <a href="4-i6c.html#SP2">§2</a><br/>C Namespace - <a href="5-cnm.html#SP7">§7</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">code_generation</span><span class="plain-syntax"> *</span><span class="identifier-syntax">gen</span><span class="plain-syntax">, </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">i</span><span class="plain-syntax">, </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">layer</span><span class="plain-syntax">) {</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">segmentation_pos</span><span class="plain-syntax"> </span><span class="identifier-syntax">previous_pos</span><span class="plain-syntax"> = </span><span class="identifier-syntax">gen</span><span class="plain-syntax">-></span><span class="element-syntax">segmentation</span><span class="plain-syntax">.</span><span class="element-syntax">pos</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">gen</span><span class="plain-syntax">-></span><span class="element-syntax">segmentation</span><span class="plain-syntax">.</span><span class="element-syntax">temporarily_diverted</span><span class="plain-syntax">) </span><span class="identifier-syntax">internal_error</span><span class="plain-syntax">(</span><span class="string-syntax">"poorly timed selection"</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> ((</span><span class="identifier-syntax">i</span><span class="plain-syntax"> < </span><span class="constant-syntax">0</span><span class="plain-syntax">) || (</span><span class="identifier-syntax">i</span><span class="plain-syntax"> >= </span><span class="identifier-syntax">NO_DEFINED_I7CGS_VALUES</span><span class="plain-syntax">)) </span><span class="identifier-syntax">internal_error</span><span class="plain-syntax">(</span><span class="string-syntax">"out of range"</span><span class="plain-syntax">);</span>
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@ -431,7 +431,7 @@ but for now about 10 layers is plenty.
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<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">previous_pos</span><span class="plain-syntax">;</span>
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<span class="plain-syntax">}</span>
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<span class="reserved-syntax">void</span><span class="plain-syntax"> </span><span class="function-syntax">CodeGen::deselect</span><button class="popup" onclick="togglePopup('usagePopup12')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup12">Usage of <span class="code-font"><span class="function-syntax">CodeGen::deselect</span></span>:<br/>Generating Inform 6 - <a href="4-fi6.html#SP4_1">§4.1</a>, <a href="4-fi6.html#SP4_2">§4.2</a>, <a href="4-fi6.html#SP5">§5</a><br/>Inform 6 Constants - <a href="4-i6c.html#SP2">§2</a>, <a href="4-i6c.html#SP5">§5</a>, <a href="4-i6c.html#SP6">§6</a><br/>Inform 6 Global Variables - <a href="4-i6gv.html#SP2_1">§2.1</a>, <a href="4-i6gv.html#SP2_2">§2.2</a>, <a href="4-i6gv.html#SP2_3">§2.3</a>, <a href="4-i6gv.html#SP2_4">§2.4</a><br/>Inform 6 Objects - <a href="4-i6o.html#SP4_3">§4.3</a>, <a href="4-i6o.html#SP4_4">§4.4</a>, <a href="4-i6o.html#SP4_5">§4.5</a>, <a href="4-i6o.html#SP4_6">§4.6</a>, <a href="4-i6o.html#SP6">§6</a>, <a href="4-i6o.html#SP9">§9</a>, <a href="4-i6o.html#SP13_1">§13.1</a>, <a href="4-i6o.html#SP13_2">§13.2</a>, <a href="4-i6o.html#SP13_3">§13.3</a><br/>Inform 6 Code - <a href="4-i6c2.html#SP2">§2</a>, <a href="4-i6c2.html#SP9">§9</a><br/>Final C - <a href="5-fnc.html#SP5_2">§5.2</a>, <a href="5-fnc.html#SP5_3">§5.3</a>, <a href="5-fnc.html#SP6_1">§6.1</a><br/>C Namespace - <a href="5-cnm.html#SP6">§6</a><br/>C Global Variables - <a href="5-cgv.html#SP1">§1</a>, <a href="5-cgv.html#SP2">§2</a><br/>C Memory Model - <a href="5-cmm.html#SP3">§3</a>, <a href="5-cmm.html#SP4">§4</a>, <a href="5-cmm.html#SP11_2">§11.2</a>, <a href="5-cmm.html#SP12">§12</a>, <a href="5-cmm.html#SP15">§15</a><br/>C Object Model - <a href="5-com.html#SP1_5">§1.5</a>, <a href="5-com.html#SP2">§2</a>, <a href="5-com.html#SP3">§3</a>, <a href="5-com.html#SP4">§4</a>, <a href="5-com.html#SP7">§7</a>, <a href="5-com.html#SP1_6">§1.6</a>, <a href="5-com.html#SP1_7">§1.7</a>, <a href="5-com.html#SP1_8">§1.8</a>, <a href="5-com.html#SP8">§8</a><br/>C Function Model - <a href="5-cfm.html#SP1">§1</a><br/>C Literals - <a href="5-clt.html#SP1">§1</a>, <a href="5-clt.html#SP2">§2</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">code_generation</span><span class="plain-syntax"> *</span><span class="identifier-syntax">gen</span><span class="plain-syntax">, </span><span class="reserved-syntax">segmentation_pos</span><span class="plain-syntax"> </span><span class="identifier-syntax">saved</span><span class="plain-syntax">) {</span>
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<span class="reserved-syntax">void</span><span class="plain-syntax"> </span><span class="function-syntax">CodeGen::deselect</span><button class="popup" onclick="togglePopup('usagePopup12')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup12">Usage of <span class="code-font"><span class="function-syntax">CodeGen::deselect</span></span>:<br/>Generating Inform 6 - <a href="4-fi6.html#SP4_1">§4.1</a>, <a href="4-fi6.html#SP4_2">§4.2</a>, <a href="4-fi6.html#SP5">§5</a><br/>Inform 6 Constants - <a href="4-i6c.html#SP2">§2</a>, <a href="4-i6c.html#SP5">§5</a>, <a href="4-i6c.html#SP6">§6</a><br/>Inform 6 Global Variables - <a href="4-i6gv.html#SP2_1">§2.1</a>, <a href="4-i6gv.html#SP2_2">§2.2</a>, <a href="4-i6gv.html#SP2_3">§2.3</a>, <a href="4-i6gv.html#SP2_4">§2.4</a><br/>Inform 6 Objects - <a href="4-i6o.html#SP4_3">§4.3</a>, <a href="4-i6o.html#SP4_4">§4.4</a>, <a href="4-i6o.html#SP4_5">§4.5</a>, <a href="4-i6o.html#SP4_6">§4.6</a>, <a href="4-i6o.html#SP6">§6</a>, <a href="4-i6o.html#SP9">§9</a>, <a href="4-i6o.html#SP13_1">§13.1</a>, <a href="4-i6o.html#SP13_2">§13.2</a>, <a href="4-i6o.html#SP13_3">§13.3</a><br/>Inform 6 Code - <a href="4-i6c2.html#SP2">§2</a>, <a href="4-i6c2.html#SP9">§9</a><br/>Final C - <a href="5-fnc.html#SP5_2">§5.2</a>, <a href="5-fnc.html#SP5_3">§5.3</a>, <a href="5-fnc.html#SP6_1">§6.1</a><br/>C Namespace - <a href="5-cnm.html#SP7">§7</a><br/>C Global Variables - <a href="5-cgv.html#SP2">§2</a>, <a href="5-cgv.html#SP3">§3</a>, <a href="5-cgv.html#SP3_1">§3.1</a>, <a href="5-cgv.html#SP3_2">§3.2</a>, <a href="5-cgv.html#SP3_3">§3.3</a>, <a href="5-cgv.html#SP3_4">§3.4</a><br/>C Memory Model - <a href="5-cmm.html#SP3">§3</a>, <a href="5-cmm.html#SP4">§4</a>, <a href="5-cmm.html#SP11_2">§11.2</a>, <a href="5-cmm.html#SP12">§12</a>, <a href="5-cmm.html#SP15">§15</a><br/>C Object Model - <a href="5-com.html#SP1_5">§1.5</a>, <a href="5-com.html#SP2">§2</a>, <a href="5-com.html#SP3">§3</a>, <a href="5-com.html#SP4">§4</a>, <a href="5-com.html#SP7">§7</a>, <a href="5-com.html#SP1_6">§1.6</a>, <a href="5-com.html#SP1_7">§1.7</a>, <a href="5-com.html#SP1_8">§1.8</a>, <a href="5-com.html#SP8">§8</a><br/>C Function Model - <a href="5-cfm.html#SP1">§1</a><br/>C Literals - <a href="5-clt.html#SP1">§1</a>, <a href="5-clt.html#SP2">§2</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">code_generation</span><span class="plain-syntax"> *</span><span class="identifier-syntax">gen</span><span class="plain-syntax">, </span><span class="reserved-syntax">segmentation_pos</span><span class="plain-syntax"> </span><span class="identifier-syntax">saved</span><span class="plain-syntax">) {</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">gen</span><span class="plain-syntax">-></span><span class="element-syntax">segmentation</span><span class="plain-syntax">.</span><span class="element-syntax">temporarily_diverted</span><span class="plain-syntax">) </span><span class="identifier-syntax">internal_error</span><span class="plain-syntax">(</span><span class="string-syntax">"poorly timed deselection"</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">gen</span><span class="plain-syntax">-></span><span class="element-syntax">segmentation</span><span class="plain-syntax">.</span><span class="element-syntax">pos</span><span class="plain-syntax"> = </span><span class="identifier-syntax">saved</span><span class="plain-syntax">;</span>
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<span class="plain-syntax">}</span>
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@ -441,13 +441,13 @@ some temporary stream somewhere. For that, use the following pair:
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</p>
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<pre class="displayed-code all-displayed-code code-font">
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<span class="reserved-syntax">void</span><span class="plain-syntax"> </span><span class="function-syntax">CodeGen::select_temporary</span><button class="popup" onclick="togglePopup('usagePopup13')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup13">Usage of <span class="code-font"><span class="function-syntax">CodeGen::select_temporary</span></span>:<br/><a href="2-cg.html#SP4">§4</a><br/>Vanilla Constants - <a href="2-vc.html#SP1_8">§1.8</a><br/>Vanilla Objects - <a href="2-vo.html#SP2_2_1_2">§2.2.1.2</a>, <a href="2-vo.html#SP4_1_1_1_1_1_1">§4.1.1.1.1.1.1</a><br/>Inform 6 Objects - <a href="4-i6o.html#SP11">§11</a><br/>C Global Variables - <a href="5-cgv.html#SP2">§2</a><br/>C Assembly - <a href="5-cas.html#SP3">§3</a><br/>C Object Model - <a href="5-com.html#SP8">§8</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">code_generation</span><span class="plain-syntax"> *</span><span class="identifier-syntax">gen</span><span class="plain-syntax">, </span><span class="identifier-syntax">text_stream</span><span class="plain-syntax"> *</span><span class="identifier-syntax">T</span><span class="plain-syntax">) {</span>
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<span class="reserved-syntax">void</span><span class="plain-syntax"> </span><span class="function-syntax">CodeGen::select_temporary</span><button class="popup" onclick="togglePopup('usagePopup13')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup13">Usage of <span class="code-font"><span class="function-syntax">CodeGen::select_temporary</span></span>:<br/><a href="2-cg.html#SP4">§4</a><br/>Vanilla Constants - <a href="2-vc.html#SP1_8">§1.8</a><br/>Vanilla Objects - <a href="2-vo.html#SP2_2_1_2">§2.2.1.2</a>, <a href="2-vo.html#SP4_1_1_1_1_1_1">§4.1.1.1.1.1.1</a><br/>Inform 6 Objects - <a href="4-i6o.html#SP11">§11</a><br/>C Assembly - <a href="5-cas.html#SP3">§3</a><br/>C Object Model - <a href="5-com.html#SP8">§8</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">code_generation</span><span class="plain-syntax"> *</span><span class="identifier-syntax">gen</span><span class="plain-syntax">, </span><span class="identifier-syntax">text_stream</span><span class="plain-syntax"> *</span><span class="identifier-syntax">T</span><span class="plain-syntax">) {</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">gen</span><span class="plain-syntax">-></span><span class="element-syntax">segmentation</span><span class="plain-syntax">.</span><span class="element-syntax">temporarily_diverted</span><span class="plain-syntax">) </span><span class="identifier-syntax">internal_error</span><span class="plain-syntax">(</span><span class="string-syntax">"nested temporary segments"</span><span class="plain-syntax">);</span>
|
||||
<span class="plain-syntax"> </span><span class="identifier-syntax">gen</span><span class="plain-syntax">-></span><span class="element-syntax">segmentation</span><span class="plain-syntax">.</span><span class="element-syntax">temporarily_diverted_to</span><span class="plain-syntax"> = </span><span class="identifier-syntax">T</span><span class="plain-syntax">;</span>
|
||||
<span class="plain-syntax"> </span><span class="identifier-syntax">gen</span><span class="plain-syntax">-></span><span class="element-syntax">segmentation</span><span class="plain-syntax">.</span><span class="element-syntax">temporarily_diverted</span><span class="plain-syntax"> = </span><span class="identifier-syntax">TRUE</span><span class="plain-syntax">;</span>
|
||||
<span class="plain-syntax">}</span>
|
||||
|
||||
<span class="reserved-syntax">void</span><span class="plain-syntax"> </span><span class="function-syntax">CodeGen::deselect_temporary</span><button class="popup" onclick="togglePopup('usagePopup14')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup14">Usage of <span class="code-font"><span class="function-syntax">CodeGen::deselect_temporary</span></span>:<br/><a href="2-cg.html#SP4">§4</a><br/>Vanilla Constants - <a href="2-vc.html#SP1_8">§1.8</a><br/>Vanilla Objects - <a href="2-vo.html#SP2_2_1_2">§2.2.1.2</a>, <a href="2-vo.html#SP4_1_1_1_1_1_1">§4.1.1.1.1.1.1</a><br/>Inform 6 Objects - <a href="4-i6o.html#SP11">§11</a><br/>C Global Variables - <a href="5-cgv.html#SP2">§2</a><br/>C Assembly - <a href="5-cas.html#SP3">§3</a><br/>C Object Model - <a href="5-com.html#SP8">§8</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">code_generation</span><span class="plain-syntax"> *</span><span class="identifier-syntax">gen</span><span class="plain-syntax">) {</span>
|
||||
<span class="reserved-syntax">void</span><span class="plain-syntax"> </span><span class="function-syntax">CodeGen::deselect_temporary</span><button class="popup" onclick="togglePopup('usagePopup14')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup14">Usage of <span class="code-font"><span class="function-syntax">CodeGen::deselect_temporary</span></span>:<br/><a href="2-cg.html#SP4">§4</a><br/>Vanilla Constants - <a href="2-vc.html#SP1_8">§1.8</a><br/>Vanilla Objects - <a href="2-vo.html#SP2_2_1_2">§2.2.1.2</a>, <a href="2-vo.html#SP4_1_1_1_1_1_1">§4.1.1.1.1.1.1</a><br/>Inform 6 Objects - <a href="4-i6o.html#SP11">§11</a><br/>C Assembly - <a href="5-cas.html#SP3">§3</a><br/>C Object Model - <a href="5-com.html#SP8">§8</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">code_generation</span><span class="plain-syntax"> *</span><span class="identifier-syntax">gen</span><span class="plain-syntax">) {</span>
|
||||
<span class="plain-syntax"> </span><span class="identifier-syntax">gen</span><span class="plain-syntax">-></span><span class="element-syntax">segmentation</span><span class="plain-syntax">.</span><span class="element-syntax">temporarily_diverted_to</span><span class="plain-syntax"> = </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">;</span>
|
||||
<span class="plain-syntax"> </span><span class="identifier-syntax">gen</span><span class="plain-syntax">-></span><span class="element-syntax">segmentation</span><span class="plain-syntax">.</span><span class="element-syntax">temporarily_diverted</span><span class="plain-syntax"> = </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">;</span>
|
||||
<span class="plain-syntax">}</span>
|
||||
|
|
@ -457,7 +457,7 @@ if it has been "temporarily diverted" then the regiular selection is ignored.
|
|||
</p>
|
||||
|
||||
<pre class="displayed-code all-displayed-code code-font">
|
||||
<span class="identifier-syntax">text_stream</span><span class="plain-syntax"> *</span><span class="function-syntax">CodeGen::current</span><button class="popup" onclick="togglePopup('usagePopup15')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup15">Usage of <span class="code-font"><span class="function-syntax">CodeGen::current</span></span>:<br/><a href="2-cg.html#SP16_1">§16.1</a><br/>Vanilla - <a href="2-vnl.html#SP4">§4</a><br/>Vanilla Constants - <a href="2-vc.html#SP2">§2</a><br/>Vanilla Objects - <a href="2-vo.html#SP5">§5</a><br/>Generating Inform 6 - <a href="4-fi6.html#SP4_1">§4.1</a>, <a href="4-fi6.html#SP4_2">§4.2</a>, <a href="4-fi6.html#SP5">§5</a><br/>Inform 6 Constants - <a href="4-i6c.html#SP2">§2</a>, <a href="4-i6c.html#SP3_1">§3.1</a>, <a href="4-i6c.html#SP3_2">§3.2</a>, <a href="4-i6c.html#SP4">§4</a>, <a href="4-i6c.html#SP5">§5</a>, <a href="4-i6c.html#SP6">§6</a>, <a href="4-i6c.html#SP7">§7</a>, <a href="4-i6c.html#SP8">§8</a>, <a href="4-i6c.html#SP9">§9</a>, <a href="4-i6c.html#SP10">§10</a><br/>Inform 6 Global Variables - <a href="4-i6gv.html#SP2_1">§2.1</a>, <a href="4-i6gv.html#SP2_2">§2.2</a>, <a href="4-i6gv.html#SP2_3">§2.3</a>, <a href="4-i6gv.html#SP2_4">§2.4</a>, <a href="4-i6gv.html#SP3">§3</a><br/>Inform 6 Objects - <a href="4-i6o.html#SP4_3">§4.3</a>, <a href="4-i6o.html#SP4_4">§4.4</a>, <a href="4-i6o.html#SP4_5">§4.5</a>, <a href="4-i6o.html#SP4_6">§4.6</a>, <a href="4-i6o.html#SP5_1">§5.1</a>, <a href="4-i6o.html#SP6">§6</a>, <a href="4-i6o.html#SP9">§9</a>, <a href="4-i6o.html#SP10">§10</a>, <a href="4-i6o.html#SP11">§11</a>, <a href="4-i6o.html#SP13_1">§13.1</a>, <a href="4-i6o.html#SP13_2">§13.2</a>, <a href="4-i6o.html#SP13_3">§13.3</a><br/>Inform 6 Code - <a href="4-i6c2.html#SP2">§2</a>, <a href="4-i6c2.html#SP2_2">§2.2</a>, <a href="4-i6c2.html#SP3">§3</a>, <a href="4-i6c2.html#SP4">§4</a>, <a href="4-i6c2.html#SP5">§5</a>, <a href="4-i6c2.html#SP6">§6</a>, <a href="4-i6c2.html#SP6_4">§6.4</a>, <a href="4-i6c2.html#SP9">§9</a><br/>Final C - <a href="5-fnc.html#SP5_2">§5.2</a>, <a href="5-fnc.html#SP5_3">§5.3</a>, <a href="5-fnc.html#SP6_1">§6.1</a><br/>C Namespace - <a href="5-cnm.html#SP6">§6</a><br/>C References - <a href="5-crf.html#SP2">§2</a><br/>C Global Variables - <a href="5-cgv.html#SP1">§1</a>, <a href="5-cgv.html#SP2">§2</a><br/>C Memory Model - <a href="5-cmm.html#SP3">§3</a>, <a href="5-cmm.html#SP4">§4</a>, <a href="5-cmm.html#SP11_2">§11.2</a>, <a href="5-cmm.html#SP12">§12</a>, <a href="5-cmm.html#SP13">§13</a>, <a href="5-cmm.html#SP15">§15</a>, <a href="5-cmm.html#SP16">§16</a><br/>C Assembly - <a href="5-cas.html#SP3">§3</a><br/>C Program Control - <a href="5-cpc.html#SP1">§1</a>, <a href="5-cpc.html#SP2">§2</a><br/>C Arithmetic - <a href="5-car.html#SP1">§1</a><br/>C Conditions - <a href="5-ccn.html#SP1">§1</a>, <a href="5-ccn.html#SP2">§2</a><br/>C Object Model - <a href="5-com.html#SP1_5">§1.5</a>, <a href="5-com.html#SP4">§4</a>, <a href="5-com.html#SP7">§7</a>, <a href="5-com.html#SP1_6">§1.6</a>, <a href="5-com.html#SP1_7">§1.7</a>, <a href="5-com.html#SP1_8">§1.8</a>, <a href="5-com.html#SP8">§8</a>, <a href="5-com.html#SP9">§9</a><br/>C Function Model - <a href="5-cfm.html#SP1">§1</a><br/>C Literals - <a href="5-clt.html#SP1">§1</a>, <a href="5-clt.html#SP2">§2</a>, <a href="5-clt.html#SP4">§4</a>, <a href="5-clt.html#SP5">§5</a><br/>C Input-Output Model - <a href="5-cim.html#SP2">§2</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">code_generation</span><span class="plain-syntax"> *</span><span class="identifier-syntax">gen</span><span class="plain-syntax">) {</span>
|
||||
<span class="identifier-syntax">text_stream</span><span class="plain-syntax"> *</span><span class="function-syntax">CodeGen::current</span><button class="popup" onclick="togglePopup('usagePopup15')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup15">Usage of <span class="code-font"><span class="function-syntax">CodeGen::current</span></span>:<br/><a href="2-cg.html#SP16_1">§16.1</a><br/>Vanilla - <a href="2-vnl.html#SP4">§4</a><br/>Vanilla Constants - <a href="2-vc.html#SP2">§2</a><br/>Vanilla Objects - <a href="2-vo.html#SP5">§5</a><br/>Generating Inform 6 - <a href="4-fi6.html#SP4_1">§4.1</a>, <a href="4-fi6.html#SP4_2">§4.2</a>, <a href="4-fi6.html#SP5">§5</a><br/>Inform 6 Constants - <a href="4-i6c.html#SP2">§2</a>, <a href="4-i6c.html#SP3_1">§3.1</a>, <a href="4-i6c.html#SP3_2">§3.2</a>, <a href="4-i6c.html#SP4">§4</a>, <a href="4-i6c.html#SP5">§5</a>, <a href="4-i6c.html#SP6">§6</a>, <a href="4-i6c.html#SP7">§7</a>, <a href="4-i6c.html#SP8">§8</a>, <a href="4-i6c.html#SP9">§9</a>, <a href="4-i6c.html#SP10">§10</a><br/>Inform 6 Global Variables - <a href="4-i6gv.html#SP2_1">§2.1</a>, <a href="4-i6gv.html#SP2_2">§2.2</a>, <a href="4-i6gv.html#SP2_3">§2.3</a>, <a href="4-i6gv.html#SP2_4">§2.4</a>, <a href="4-i6gv.html#SP3">§3</a><br/>Inform 6 Objects - <a href="4-i6o.html#SP4_3">§4.3</a>, <a href="4-i6o.html#SP4_4">§4.4</a>, <a href="4-i6o.html#SP4_5">§4.5</a>, <a href="4-i6o.html#SP4_6">§4.6</a>, <a href="4-i6o.html#SP5_1">§5.1</a>, <a href="4-i6o.html#SP6">§6</a>, <a href="4-i6o.html#SP9">§9</a>, <a href="4-i6o.html#SP10">§10</a>, <a href="4-i6o.html#SP11">§11</a>, <a href="4-i6o.html#SP13_1">§13.1</a>, <a href="4-i6o.html#SP13_2">§13.2</a>, <a href="4-i6o.html#SP13_3">§13.3</a><br/>Inform 6 Code - <a href="4-i6c2.html#SP2">§2</a>, <a href="4-i6c2.html#SP2_2">§2.2</a>, <a href="4-i6c2.html#SP3">§3</a>, <a href="4-i6c2.html#SP4">§4</a>, <a href="4-i6c2.html#SP5">§5</a>, <a href="4-i6c2.html#SP6">§6</a>, <a href="4-i6c2.html#SP6_4">§6.4</a>, <a href="4-i6c2.html#SP9">§9</a><br/>Final C - <a href="5-fnc.html#SP5_2">§5.2</a>, <a href="5-fnc.html#SP5_3">§5.3</a>, <a href="5-fnc.html#SP6_1">§6.1</a><br/>C Namespace - <a href="5-cnm.html#SP7">§7</a><br/>C References - <a href="5-crf.html#SP2">§2</a><br/>C Global Variables - <a href="5-cgv.html#SP2">§2</a>, <a href="5-cgv.html#SP3">§3</a>, <a href="5-cgv.html#SP3_1">§3.1</a>, <a href="5-cgv.html#SP3_2">§3.2</a>, <a href="5-cgv.html#SP3_3">§3.3</a>, <a href="5-cgv.html#SP3_4">§3.4</a>, <a href="5-cgv.html#SP4">§4</a><br/>C Memory Model - <a href="5-cmm.html#SP3">§3</a>, <a href="5-cmm.html#SP4">§4</a>, <a href="5-cmm.html#SP11_2">§11.2</a>, <a href="5-cmm.html#SP12">§12</a>, <a href="5-cmm.html#SP13">§13</a>, <a href="5-cmm.html#SP15">§15</a>, <a href="5-cmm.html#SP16">§16</a><br/>C Assembly - <a href="5-cas.html#SP3">§3</a><br/>C Program Control - <a href="5-cpc.html#SP1">§1</a>, <a href="5-cpc.html#SP2">§2</a><br/>C Arithmetic - <a href="5-car.html#SP1">§1</a><br/>C Conditions - <a href="5-ccn.html#SP1">§1</a>, <a href="5-ccn.html#SP2">§2</a><br/>C Object Model - <a href="5-com.html#SP1_5">§1.5</a>, <a href="5-com.html#SP4">§4</a>, <a href="5-com.html#SP7">§7</a>, <a href="5-com.html#SP1_6">§1.6</a>, <a href="5-com.html#SP1_7">§1.7</a>, <a href="5-com.html#SP1_8">§1.8</a>, <a href="5-com.html#SP8">§8</a>, <a href="5-com.html#SP9">§9</a><br/>C Function Model - <a href="5-cfm.html#SP1">§1</a><br/>C Literals - <a href="5-clt.html#SP1">§1</a>, <a href="5-clt.html#SP2">§2</a>, <a href="5-clt.html#SP4">§4</a>, <a href="5-clt.html#SP5">§5</a><br/>C Input-Output Model - <a href="5-cim.html#SP2">§2</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">code_generation</span><span class="plain-syntax"> *</span><span class="identifier-syntax">gen</span><span class="plain-syntax">) {</span>
|
||||
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">gen</span><span class="plain-syntax">-></span><span class="element-syntax">segmentation</span><span class="plain-syntax">.</span><span class="element-syntax">temporarily_diverted</span><span class="plain-syntax">)</span>
|
||||
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">gen</span><span class="plain-syntax">-></span><span class="element-syntax">segmentation</span><span class="plain-syntax">.</span><span class="identifier-syntax">temporarily_diverted_to</span><span class="plain-syntax">;</span>
|
||||
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">gen</span><span class="plain-syntax">-></span><span class="element-syntax">segmentation</span><span class="plain-syntax">.</span><span class="element-syntax">pos</span><span class="plain-syntax">.</span><span class="element-syntax">current_segment</span><span class="plain-syntax"> == </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">) </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">;</span>
|
||||
|
|
@ -533,7 +533,7 @@ extracted from some Inter instruction.
|
|||
<span class="plain-syntax"> </span><span class="named-paragraph-container code-font"><a href="2-cg.html#SP16_1" class="named-paragraph-link"><span class="named-paragraph">Generate from a value pair</span><span class="named-paragraph-number">16.1</span></a></span><span class="plain-syntax">;</span>
|
||||
<span class="plain-syntax">}</span>
|
||||
|
||||
<span class="reserved-syntax">void</span><span class="plain-syntax"> </span><span class="function-syntax">CodeGen::pair</span><button class="popup" onclick="togglePopup('usagePopup23')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup23">Usage of <span class="code-font"><span class="function-syntax">CodeGen::pair</span></span>:<br/>Vanilla Constants - <a href="2-vc.html#SP1_8">§1.8</a>, <a href="2-vc.html#SP2">§2</a><br/>Vanilla Objects - <a href="2-vo.html#SP4_1_1_1_1_1_1">§4.1.1.1.1.1.1</a><br/>Vanilla Code - <a href="2-vc2.html#SP4">§4</a><br/>Inform 6 Constants - <a href="4-i6c.html#SP3_1">§3.1</a><br/>Inform 6 Global Variables - <a href="4-i6gv.html#SP2_2">§2.2</a>, <a href="4-i6gv.html#SP2_4">§2.4</a><br/>Inform 6 Objects - <a href="4-i6o.html#SP11">§11</a><br/>C Global Variables - <a href="5-cgv.html#SP2">§2</a><br/>C Object Model - <a href="5-com.html#SP8">§8</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">code_generation</span><span class="plain-syntax"> *</span><span class="identifier-syntax">gen</span><span class="plain-syntax">, </span><span class="identifier-syntax">inter_tree_node</span><span class="plain-syntax"> *</span><span class="identifier-syntax">P</span><span class="plain-syntax">,</span>
|
||||
<span class="reserved-syntax">void</span><span class="plain-syntax"> </span><span class="function-syntax">CodeGen::pair</span><button class="popup" onclick="togglePopup('usagePopup23')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup23">Usage of <span class="code-font"><span class="function-syntax">CodeGen::pair</span></span>:<br/>Vanilla Constants - <a href="2-vc.html#SP1_8">§1.8</a>, <a href="2-vc.html#SP2">§2</a><br/>Vanilla Objects - <a href="2-vo.html#SP4_1_1_1_1_1_1">§4.1.1.1.1.1.1</a><br/>Vanilla Code - <a href="2-vc2.html#SP4">§4</a><br/>Inform 6 Constants - <a href="4-i6c.html#SP3_1">§3.1</a><br/>Inform 6 Global Variables - <a href="4-i6gv.html#SP2_2">§2.2</a>, <a href="4-i6gv.html#SP2_4">§2.4</a><br/>Inform 6 Objects - <a href="4-i6o.html#SP11">§11</a><br/>C Global Variables - <a href="5-cgv.html#SP3_4">§3.4</a><br/>C Object Model - <a href="5-com.html#SP8">§8</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">code_generation</span><span class="plain-syntax"> *</span><span class="identifier-syntax">gen</span><span class="plain-syntax">, </span><span class="identifier-syntax">inter_tree_node</span><span class="plain-syntax"> *</span><span class="identifier-syntax">P</span><span class="plain-syntax">,</span>
|
||||
<span class="plain-syntax"> </span><span class="identifier-syntax">inter_ti</span><span class="plain-syntax"> </span><span class="identifier-syntax">val1</span><span class="plain-syntax">, </span><span class="identifier-syntax">inter_ti</span><span class="plain-syntax"> </span><span class="identifier-syntax">val2</span><span class="plain-syntax">) {</span>
|
||||
<span class="plain-syntax"> </span><span class="identifier-syntax">inter_symbols_table</span><span class="plain-syntax"> *</span><span class="identifier-syntax">T</span><span class="plain-syntax"> = </span><span class="identifier-syntax">P</span><span class="plain-syntax">?(</span><span class="identifier-syntax">Inter::Packages::scope_of</span><span class="plain-syntax">(</span><span class="identifier-syntax">P</span><span class="plain-syntax">)):</span><span class="identifier-syntax">NULL</span><span class="plain-syntax">;</span>
|
||||
<span class="plain-syntax"> </span><span class="named-paragraph-container code-font"><a href="2-cg.html#SP16_1" class="named-paragraph-link"><span class="named-paragraph">Generate from a value pair</span><span class="named-paragraph-number">16.1</span></a></span><span class="plain-syntax">;</span>
|
||||
|
|
|
|||
|
|
@ -277,7 +277,7 @@ that, it will have to make other arrangements.
|
|||
</p>
|
||||
|
||||
<pre class="displayed-code all-displayed-code code-font">
|
||||
<span class="reserved-syntax">void</span><span class="plain-syntax"> </span><span class="function-syntax">VanillaConstants::definition_value</span><button class="popup" onclick="togglePopup('usagePopup2')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup2">Usage of <span class="code-font"><span class="function-syntax">VanillaConstants::definition_value</span></span>:<br/>Inform 6 Constants - <a href="4-i6c.html#SP2">§2</a>, <a href="4-i6c.html#SP2_4">§2.4</a>, <a href="4-i6c.html#SP2_5">§2.5</a><br/>C Namespace - <a href="5-cnm.html#SP6">§6</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">code_generation</span><span class="plain-syntax"> *</span><span class="identifier-syntax">gen</span><span class="plain-syntax">, </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">form</span><span class="plain-syntax">,</span>
|
||||
<span class="reserved-syntax">void</span><span class="plain-syntax"> </span><span class="function-syntax">VanillaConstants::definition_value</span><button class="popup" onclick="togglePopup('usagePopup2')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup2">Usage of <span class="code-font"><span class="function-syntax">VanillaConstants::definition_value</span></span>:<br/>Inform 6 Constants - <a href="4-i6c.html#SP2">§2</a>, <a href="4-i6c.html#SP2_4">§2.4</a>, <a href="4-i6c.html#SP2_5">§2.5</a><br/>C Namespace - <a href="5-cnm.html#SP7">§7</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">code_generation</span><span class="plain-syntax"> *</span><span class="identifier-syntax">gen</span><span class="plain-syntax">, </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">form</span><span class="plain-syntax">,</span>
|
||||
<span class="plain-syntax"> </span><span class="identifier-syntax">inter_symbol</span><span class="plain-syntax"> *</span><span class="identifier-syntax">con_name</span><span class="plain-syntax">, </span><span class="identifier-syntax">text_stream</span><span class="plain-syntax"> *</span><span class="identifier-syntax">val</span><span class="plain-syntax">) {</span>
|
||||
<span class="plain-syntax"> </span><span class="identifier-syntax">inter_tree_node</span><span class="plain-syntax"> *</span><span class="identifier-syntax">P</span><span class="plain-syntax"> = </span><span class="identifier-syntax">con_name</span><span class="plain-syntax">-></span><span class="identifier-syntax">definition</span><span class="plain-syntax">;</span>
|
||||
<span class="plain-syntax"> </span><span class="identifier-syntax">text_stream</span><span class="plain-syntax"> *</span><span class="identifier-syntax">OUT</span><span class="plain-syntax"> = </span><a href="2-cg.html#SP12" class="function-link"><span class="function-syntax">CodeGen::current</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">gen</span><span class="plain-syntax">);</span>
|
||||
|
|
|
|||
|
|
@ -21,7 +21,6 @@ function togglePopup(material_id) {
|
|||
|
||||
<link href="../docs-assets/Popups.css" rel="stylesheet" rev="stylesheet" type="text/css">
|
||||
<link href="../docs-assets/Colours.css" rel="stylesheet" rev="stylesheet" type="text/css">
|
||||
<link href="../docs-assets/Extracts-Colours.css" rel="stylesheet" rev="stylesheet" type="text/css">
|
||||
|
||||
</head>
|
||||
<body class="commentary-font">
|
||||
|
|
@ -74,95 +73,157 @@ function togglePopup(material_id) {
|
|||
<ul class="crumbs"><li><a href="../index.html">Home</a></li><li><a href="../compiler.html">Inter Modules</a></li><li><a href="index.html">final</a></li><li><a href="index.html#5">Chapter 5: C</a></li><li><b>C Global Variables</b></li></ul></div>
|
||||
<p class="purpose">Global variables translated to C.</p>
|
||||
|
||||
<ul class="toc"><li><a href="5-cgv.html#SP1">§1. Setting up the model</a></li></ul><hr class="tocbar">
|
||||
|
||||
<p class="commentary firstcommentary"><a id="SP1" class="paragraph-anchor"></a><b>§1. Setting up the model. </b></p>
|
||||
<p class="commentary firstcommentary"><a id="SP1" class="paragraph-anchor"></a><b>§1. </b></p>
|
||||
|
||||
<pre class="displayed-code all-displayed-code code-font">
|
||||
<span class="reserved-syntax">void</span><span class="plain-syntax"> </span><span class="function-syntax">CGlobals::initialise</span><button class="popup" onclick="togglePopup('usagePopup1')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup1">Usage of <span class="code-font"><span class="function-syntax">CGlobals::initialise</span></span>:<br/>Final C - <a href="5-fnc.html#SP1">§1</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">code_generator</span><span class="plain-syntax"> *</span><span class="identifier-syntax">cgt</span><span class="plain-syntax">) {</span>
|
||||
<span class="plain-syntax"> </span><span class="identifier-syntax">METHOD_ADD</span><span class="plain-syntax">(</span><span class="identifier-syntax">cgt</span><span class="plain-syntax">, </span><span class="constant-syntax">DECLARE_VARIABLES_MTID</span><span class="plain-syntax">, </span><a href="5-cgv.html#SP2" class="function-link"><span class="function-syntax">CGlobals::declare_variables</span></a><span class="plain-syntax">);</span>
|
||||
<span class="plain-syntax"> </span><span class="identifier-syntax">METHOD_ADD</span><span class="plain-syntax">(</span><span class="identifier-syntax">cgt</span><span class="plain-syntax">, </span><span class="constant-syntax">EVALUATE_VARIABLE_MTID</span><span class="plain-syntax">, </span><a href="5-cgv.html#SP2" class="function-link"><span class="function-syntax">CGlobals::evaluate_variable</span></a><span class="plain-syntax">);</span>
|
||||
<span class="plain-syntax"> </span><span class="identifier-syntax">METHOD_ADD</span><span class="plain-syntax">(</span><span class="identifier-syntax">cgt</span><span class="plain-syntax">, </span><span class="constant-syntax">DECLARE_VARIABLES_MTID</span><span class="plain-syntax">, </span><a href="5-cgv.html#SP3" class="function-link"><span class="function-syntax">CGlobals::declare_variables</span></a><span class="plain-syntax">);</span>
|
||||
<span class="plain-syntax"> </span><span class="identifier-syntax">METHOD_ADD</span><span class="plain-syntax">(</span><span class="identifier-syntax">cgt</span><span class="plain-syntax">, </span><span class="constant-syntax">EVALUATE_VARIABLE_MTID</span><span class="plain-syntax">, </span><a href="5-cgv.html#SP4" class="function-link"><span class="function-syntax">CGlobals::evaluate_variable</span></a><span class="plain-syntax">);</span>
|
||||
<span class="plain-syntax">}</span>
|
||||
|
||||
<span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">C_var_count</span><span class="plain-syntax"> = </span><span class="constant-syntax">1</span><span class="plain-syntax">;</span>
|
||||
<span class="identifier-syntax">text_stream</span><span class="plain-syntax"> *</span><span class="identifier-syntax">C_var_vals</span><span class="plain-syntax"> = </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">;</span>
|
||||
<span class="reserved-syntax">typedef</span><span class="plain-syntax"> </span><span class="reserved-syntax">struct</span><span class="plain-syntax"> </span><span class="reserved-syntax">C_generation_variables_data</span><span class="plain-syntax"> {</span>
|
||||
<span class="plain-syntax"> </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">no_variables</span><span class="plain-syntax">;</span>
|
||||
<span class="plain-syntax">} </span><span class="reserved-syntax">C_generation_variables_data</span><span class="plain-syntax">;</span>
|
||||
|
||||
<span class="reserved-syntax">void</span><span class="plain-syntax"> </span><span class="function-syntax">CGlobals::initialise_data</span><button class="popup" onclick="togglePopup('usagePopup2')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup2">Usage of <span class="code-font"><span class="function-syntax">CGlobals::initialise_data</span></span>:<br/>Final C - <a href="5-fnc.html#SP4">§4</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">code_generation</span><span class="plain-syntax"> *</span><span class="identifier-syntax">gen</span><span class="plain-syntax">) {</span>
|
||||
<span class="plain-syntax"> </span><span class="identifier-syntax">C_var_count</span><span class="plain-syntax"> = </span><span class="constant-syntax">1</span><span class="plain-syntax">;</span>
|
||||
<span class="plain-syntax"> </span><span class="identifier-syntax">C_var_vals</span><span class="plain-syntax"> = </span><span class="identifier-syntax">Str::new</span><span class="plain-syntax">();</span>
|
||||
<span class="plain-syntax"> </span><span class="identifier-syntax">C_GEN_DATA</span><span class="plain-syntax">(</span><span class="identifier-syntax">vardata</span><span class="plain-syntax">.</span><span class="element-syntax">no_variables</span><span class="plain-syntax">) = </span><span class="constant-syntax">1</span><span class="plain-syntax">;</span>
|
||||
<span class="plain-syntax">}</span>
|
||||
</pre>
|
||||
<ul class="endnotetexts"><li>The structure C_generation_variables_data is private to this section.</li></ul>
|
||||
<p class="commentary firstcommentary"><a id="SP2" class="paragraph-anchor"></a><b>§2. </b>The basic scheme is this: the global Inter variables are going to have
|
||||
their values stored in an array, so to identify which variable you are reading
|
||||
or writing, you need an index (i.e., position) in that array.
|
||||
</p>
|
||||
|
||||
<p class="commentary">The main thing we need to compile is a (static) array of initial values for
|
||||
these variables, so that a new process can be initialised. But we must also
|
||||
define constants to refer to their positions in the array.
|
||||
</p>
|
||||
|
||||
<pre class="displayed-code all-displayed-code code-font">
|
||||
<span class="reserved-syntax">void</span><span class="plain-syntax"> </span><span class="function-syntax">CGlobals::begin</span><button class="popup" onclick="togglePopup('usagePopup3')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup3">Usage of <span class="code-font"><span class="function-syntax">CGlobals::begin</span></span>:<br/>Final C - <a href="5-fnc.html#SP5">§5</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">code_generation</span><span class="plain-syntax"> *</span><span class="identifier-syntax">gen</span><span class="plain-syntax">) {</span>
|
||||
<span class="plain-syntax">}</span>
|
||||
|
||||
<span class="reserved-syntax">void</span><span class="plain-syntax"> </span><span class="function-syntax">CGlobals::end</span><button class="popup" onclick="togglePopup('usagePopup4')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup4">Usage of <span class="code-font"><span class="function-syntax">CGlobals::end</span></span>:<br/>Final C - <a href="5-fnc.html#SP6">§6</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">code_generation</span><span class="plain-syntax"> *</span><span class="identifier-syntax">gen</span><span class="plain-syntax">) {</span>
|
||||
<span class="plain-syntax"> </span><span class="reserved-syntax">segmentation_pos</span><span class="plain-syntax"> </span><span class="identifier-syntax">saved</span><span class="plain-syntax"> = </span><a href="2-cg.html#SP10" class="function-link"><span class="function-syntax">CodeGen::select</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">gen</span><span class="plain-syntax">, </span><span class="constant-syntax">c_ids_and_maxima_I7CGS</span><span class="plain-syntax">);</span>
|
||||
<span class="plain-syntax"> </span><span class="identifier-syntax">text_stream</span><span class="plain-syntax"> *</span><span class="identifier-syntax">OUT</span><span class="plain-syntax"> = </span><a href="2-cg.html#SP12" class="function-link"><span class="function-syntax">CodeGen::current</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">gen</span><span class="plain-syntax">);</span>
|
||||
|
||||
<span class="plain-syntax"> </span><span class="identifier-syntax">WRITE</span><span class="plain-syntax">(</span><span class="string-syntax">"#define i7_no_variables %d\n"</span><span class="plain-syntax">, </span><span class="identifier-syntax">C_var_count</span><span class="plain-syntax">);</span>
|
||||
<span class="plain-syntax"> </span><span class="identifier-syntax">WRITE</span><span class="plain-syntax">(</span><span class="string-syntax">"#define i7_var_self 0\n"</span><span class="plain-syntax">);</span>
|
||||
<span class="plain-syntax"> </span><span class="identifier-syntax">WRITE</span><span class="plain-syntax">(</span><span class="string-syntax">"i7word_t i7_initial_variable_values[];\n"</span><span class="plain-syntax">);</span>
|
||||
<span class="plain-syntax"> </span><a href="2-cg.html#SP10" class="function-link"><span class="function-syntax">CodeGen::deselect</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">gen</span><span class="plain-syntax">, </span><span class="identifier-syntax">saved</span><span class="plain-syntax">);</span>
|
||||
|
||||
<span class="plain-syntax"> </span><span class="identifier-syntax">saved</span><span class="plain-syntax"> = </span><a href="2-cg.html#SP10" class="function-link"><span class="function-syntax">CodeGen::select</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">gen</span><span class="plain-syntax">, </span><span class="constant-syntax">c_globals_array_I7CGS</span><span class="plain-syntax">);</span>
|
||||
<span class="plain-syntax"> </span><span class="identifier-syntax">OUT</span><span class="plain-syntax"> = </span><a href="2-cg.html#SP12" class="function-link"><span class="function-syntax">CodeGen::current</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">gen</span><span class="plain-syntax">);</span>
|
||||
<span class="plain-syntax"> </span><span class="identifier-syntax">WRITE</span><span class="plain-syntax">(</span><span class="string-syntax">"i7word_t i7_initial_variable_values[] = { 0 %S };\n"</span><span class="plain-syntax">, </span><span class="identifier-syntax">C_var_vals</span><span class="plain-syntax">);</span>
|
||||
<span class="plain-syntax"> </span><span class="identifier-syntax">WRITE</span><span class="plain-syntax">(</span><span class="string-syntax">"#define i7_no_variables %d\n"</span><span class="plain-syntax">, </span><span class="identifier-syntax">C_GEN_DATA</span><span class="plain-syntax">(</span><span class="identifier-syntax">vardata</span><span class="plain-syntax">.</span><span class="element-syntax">no_variables</span><span class="plain-syntax">));</span>
|
||||
<span class="plain-syntax"> </span><span class="identifier-syntax">WRITE</span><span class="plain-syntax">(</span><span class="string-syntax">"i7word_t i7_initial_variable_values[i7_no_variables];\n"</span><span class="plain-syntax">);</span>
|
||||
<span class="plain-syntax"> </span><a href="2-cg.html#SP10" class="function-link"><span class="function-syntax">CodeGen::deselect</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">gen</span><span class="plain-syntax">, </span><span class="identifier-syntax">saved</span><span class="plain-syntax">);</span>
|
||||
<span class="plain-syntax">}</span>
|
||||
</pre>
|
||||
<p class="commentary firstcommentary"><a id="SP2" class="paragraph-anchor"></a><b>§2. </b></p>
|
||||
<p class="commentary firstcommentary"><a id="SP3" class="paragraph-anchor"></a><b>§3. </b>We will assign the global variables unique index numbers 0, 1, 2, ..., with
|
||||
the special variable <span class="extract"><span class="extract-syntax">self</span></span> given index 0. Note that <span class="extract"><span class="extract-syntax">self</span></span> always exists,
|
||||
but has no Inter declaration node.
|
||||
</p>
|
||||
|
||||
<pre class="displayed-code all-displayed-code code-font">
|
||||
<span class="reserved-syntax">void</span><span class="plain-syntax"> </span><span class="function-syntax">CGlobals::declare_variables</span><button class="popup" onclick="togglePopup('usagePopup5')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup5">Usage of <span class="code-font"><span class="function-syntax">CGlobals::declare_variables</span></span>:<br/><a href="5-cgv.html#SP1">§1</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">code_generator</span><span class="plain-syntax"> *</span><span class="identifier-syntax">cgt</span><span class="plain-syntax">, </span><span class="reserved-syntax">code_generation</span><span class="plain-syntax"> *</span><span class="identifier-syntax">gen</span><span class="plain-syntax">, </span><span class="identifier-syntax">linked_list</span><span class="plain-syntax"> *</span><span class="identifier-syntax">L</span><span class="plain-syntax">) {</span>
|
||||
<span class="plain-syntax"> </span><span class="reserved-syntax">segmentation_pos</span><span class="plain-syntax"> </span><span class="identifier-syntax">saved</span><span class="plain-syntax"> = </span><a href="2-cg.html#SP10" class="function-link"><span class="function-syntax">CodeGen::select</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">gen</span><span class="plain-syntax">, </span><span class="constant-syntax">c_globals_array_I7CGS</span><span class="plain-syntax">);</span>
|
||||
<span class="plain-syntax"> </span><span class="identifier-syntax">text_stream</span><span class="plain-syntax"> *</span><span class="identifier-syntax">OUT</span><span class="plain-syntax"> = </span><a href="2-cg.html#SP12" class="function-link"><span class="function-syntax">CodeGen::current</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">gen</span><span class="plain-syntax">);</span>
|
||||
<span class="plain-syntax"> </span><span class="identifier-syntax">WRITE</span><span class="plain-syntax">(</span><span class="string-syntax">"i7word_t i7_initial_variable_values[i7_no_variables] = {\n"</span><span class="plain-syntax">);</span>
|
||||
|
||||
<span class="plain-syntax"> </span><span class="named-paragraph-container code-font"><a href="5-cgv.html#SP3_1" class="named-paragraph-link"><span class="named-paragraph">Define a constant for the self position in the globals array</span><span class="named-paragraph-number">3.1</span></a></span><span class="plain-syntax">;</span>
|
||||
<span class="plain-syntax"> </span><span class="named-paragraph-container code-font"><a href="5-cgv.html#SP3_3" class="named-paragraph-link"><span class="named-paragraph">Add the initial value for self to the globals array</span><span class="named-paragraph-number">3.3</span></a></span><span class="plain-syntax">;</span>
|
||||
<span class="plain-syntax"> </span><span class="named-paragraph-container code-font"><a href="5-cgv.html#SP3_5" class="named-paragraph-link"><span class="named-paragraph">Define a more legible constant for self to the header target</span><span class="named-paragraph-number">3.5</span></a></span><span class="plain-syntax">;</span>
|
||||
|
||||
<span class="plain-syntax"> </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">N</span><span class="plain-syntax"> = </span><span class="constant-syntax">1</span><span class="plain-syntax">;</span>
|
||||
<span class="plain-syntax"> </span><span class="identifier-syntax">inter_symbol</span><span class="plain-syntax"> *</span><span class="identifier-syntax">var_name</span><span class="plain-syntax">;</span>
|
||||
<span class="plain-syntax"> </span><span class="identifier-syntax">LOOP_OVER_LINKED_LIST</span><span class="plain-syntax">(</span><span class="identifier-syntax">var_name</span><span class="plain-syntax">, </span><span class="identifier-syntax">inter_symbol</span><span class="plain-syntax">, </span><span class="identifier-syntax">L</span><span class="plain-syntax">) {</span>
|
||||
<span class="plain-syntax"> </span><span class="identifier-syntax">inter_tree_node</span><span class="plain-syntax"> *</span><span class="identifier-syntax">P</span><span class="plain-syntax"> = </span><span class="identifier-syntax">var_name</span><span class="plain-syntax">-></span><span class="identifier-syntax">definition</span><span class="plain-syntax">;</span>
|
||||
<span class="plain-syntax"> </span><a href="5-cgv.html#SP2" class="function-link"><span class="function-syntax">CGlobals::declare_variable_by_name</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">gen</span><span class="plain-syntax">, </span><span class="identifier-syntax">Inter::Symbols::name</span><span class="plain-syntax">(</span><span class="identifier-syntax">var_name</span><span class="plain-syntax">), </span><span class="identifier-syntax">P</span><span class="plain-syntax">);</span>
|
||||
<span class="plain-syntax"> </span><span class="identifier-syntax">text_stream</span><span class="plain-syntax"> *</span><span class="identifier-syntax">name</span><span class="plain-syntax"> = </span><span class="identifier-syntax">Metadata::read_optional_textual</span><span class="plain-syntax">(</span><span class="identifier-syntax">Inter::Packages::container</span><span class="plain-syntax">(</span><span class="identifier-syntax">var_name</span><span class="plain-syntax">-></span><span class="identifier-syntax">definition</span><span class="plain-syntax">), </span><span class="identifier-syntax">I</span><span class="string-syntax">"^name"</span><span class="plain-syntax">);</span>
|
||||
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">name</span><span class="plain-syntax">)</span>
|
||||
<span class="plain-syntax"> </span><a href="5-com.html#SP4" class="function-link"><span class="function-syntax">CObjectModel::define_header_constant_for_variable</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">gen</span><span class="plain-syntax">, </span><span class="identifier-syntax">name</span><span class="plain-syntax">, </span><span class="identifier-syntax">C_var_count</span><span class="plain-syntax"> - </span><span class="constant-syntax">1</span><span class="plain-syntax">);</span>
|
||||
<span class="plain-syntax"> </span><span class="reserved-syntax">else</span>
|
||||
<span class="plain-syntax"> </span><a href="5-com.html#SP4" class="function-link"><span class="function-syntax">CObjectModel::define_header_constant_for_variable</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">gen</span><span class="plain-syntax">, </span><span class="identifier-syntax">Inter::Symbols::name</span><span class="plain-syntax">(</span><span class="identifier-syntax">var_name</span><span class="plain-syntax">), </span><span class="identifier-syntax">C_var_count</span><span class="plain-syntax"> - </span><span class="constant-syntax">1</span><span class="plain-syntax">);</span>
|
||||
<span class="plain-syntax"> </span><span class="identifier-syntax">text_stream</span><span class="plain-syntax"> *</span><span class="identifier-syntax">identifier</span><span class="plain-syntax"> = </span><span class="identifier-syntax">Inter::Symbols::name</span><span class="plain-syntax">(</span><span class="identifier-syntax">var_name</span><span class="plain-syntax">);</span>
|
||||
<span class="plain-syntax"> </span><span class="named-paragraph-container code-font"><a href="5-cgv.html#SP3_2" class="named-paragraph-link"><span class="named-paragraph">Define a constant for this position in the globals array</span><span class="named-paragraph-number">3.2</span></a></span><span class="plain-syntax">;</span>
|
||||
<span class="plain-syntax"> </span><span class="named-paragraph-container code-font"><a href="5-cgv.html#SP3_4" class="named-paragraph-link"><span class="named-paragraph">Add the initial value to the globals array</span><span class="named-paragraph-number">3.4</span></a></span><span class="plain-syntax">;</span>
|
||||
<span class="plain-syntax"> </span><span class="named-paragraph-container code-font"><a href="5-cgv.html#SP3_6" class="named-paragraph-link"><span class="named-paragraph">Define a more legible constant for the header target</span><span class="named-paragraph-number">3.6</span></a></span><span class="plain-syntax">;</span>
|
||||
<span class="plain-syntax"> </span><span class="identifier-syntax">N</span><span class="plain-syntax">++;</span>
|
||||
<span class="plain-syntax"> }</span>
|
||||
<span class="plain-syntax">}</span>
|
||||
<span class="plain-syntax"> </span><span class="identifier-syntax">C_GEN_DATA</span><span class="plain-syntax">(</span><span class="identifier-syntax">vardata</span><span class="plain-syntax">.</span><span class="element-syntax">no_variables</span><span class="plain-syntax">) = </span><span class="identifier-syntax">N</span><span class="plain-syntax">;</span>
|
||||
|
||||
<span class="reserved-syntax">void</span><span class="plain-syntax"> </span><span class="function-syntax">CGlobals::declare_variable_by_name</span><span class="plain-syntax">(</span><span class="reserved-syntax">code_generation</span><span class="plain-syntax"> *</span><span class="identifier-syntax">gen</span><span class="plain-syntax">, </span><span class="identifier-syntax">text_stream</span><span class="plain-syntax"> *</span><span class="identifier-syntax">name</span><span class="plain-syntax">,</span>
|
||||
<span class="plain-syntax"> </span><span class="identifier-syntax">inter_tree_node</span><span class="plain-syntax"> *</span><span class="identifier-syntax">P</span><span class="plain-syntax">) {</span>
|
||||
<span class="plain-syntax"> </span><span class="identifier-syntax">WRITE</span><span class="plain-syntax">(</span><span class="string-syntax">"};\n"</span><span class="plain-syntax">);</span>
|
||||
<span class="plain-syntax"> </span><a href="2-cg.html#SP10" class="function-link"><span class="function-syntax">CodeGen::deselect</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">gen</span><span class="plain-syntax">, </span><span class="identifier-syntax">saved</span><span class="plain-syntax">);</span>
|
||||
<span class="plain-syntax">}</span>
|
||||
</pre>
|
||||
<p class="commentary firstcommentary"><a id="SP3_1" class="paragraph-anchor"></a><b>§3.1. </b><span class="named-paragraph-container code-font"><span class="named-paragraph-defn">Define a constant for the self position in the globals array</span><span class="named-paragraph-number">3.1</span></span><span class="comment-syntax"> =</span>
|
||||
</p>
|
||||
|
||||
<pre class="displayed-code all-displayed-code code-font">
|
||||
<span class="plain-syntax"> </span><span class="reserved-syntax">segmentation_pos</span><span class="plain-syntax"> </span><span class="identifier-syntax">saved</span><span class="plain-syntax"> = </span><a href="2-cg.html#SP10" class="function-link"><span class="function-syntax">CodeGen::select</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">gen</span><span class="plain-syntax">, </span><span class="constant-syntax">c_ids_and_maxima_I7CGS</span><span class="plain-syntax">);</span>
|
||||
<span class="plain-syntax"> </span><span class="identifier-syntax">text_stream</span><span class="plain-syntax"> *</span><span class="identifier-syntax">OUT</span><span class="plain-syntax"> = </span><a href="2-cg.html#SP12" class="function-link"><span class="function-syntax">CodeGen::current</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">gen</span><span class="plain-syntax">);</span>
|
||||
<span class="plain-syntax"> </span><span class="identifier-syntax">WRITE</span><span class="plain-syntax">(</span><span class="string-syntax">"#define "</span><span class="plain-syntax">);</span>
|
||||
<span class="plain-syntax"> </span><a href="5-cnm.html#SP5" class="function-link"><span class="function-syntax">CNamespace::mangle_variable</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">OUT</span><span class="plain-syntax">, </span><span class="identifier-syntax">I</span><span class="string-syntax">"self"</span><span class="plain-syntax">);</span>
|
||||
<span class="plain-syntax"> </span><span class="identifier-syntax">WRITE</span><span class="plain-syntax">(</span><span class="string-syntax">" 0\n"</span><span class="plain-syntax">);</span>
|
||||
<span class="plain-syntax"> </span><a href="2-cg.html#SP10" class="function-link"><span class="function-syntax">CodeGen::deselect</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">gen</span><span class="plain-syntax">, </span><span class="identifier-syntax">saved</span><span class="plain-syntax">);</span>
|
||||
</pre>
|
||||
<ul class="endnotetexts"><li>This code is used in <a href="5-cgv.html#SP3">§3</a>.</li></ul>
|
||||
<p class="commentary firstcommentary"><a id="SP3_2" class="paragraph-anchor"></a><b>§3.2. </b><span class="named-paragraph-container code-font"><span class="named-paragraph-defn">Define a constant for this position in the globals array</span><span class="named-paragraph-number">3.2</span></span><span class="comment-syntax"> =</span>
|
||||
</p>
|
||||
|
||||
<pre class="displayed-code all-displayed-code code-font">
|
||||
<span class="plain-syntax"> </span><span class="reserved-syntax">segmentation_pos</span><span class="plain-syntax"> </span><span class="identifier-syntax">saved</span><span class="plain-syntax"> = </span><a href="2-cg.html#SP10" class="function-link"><span class="function-syntax">CodeGen::select</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">gen</span><span class="plain-syntax">, </span><span class="constant-syntax">c_predeclarations_I7CGS</span><span class="plain-syntax">);</span>
|
||||
<span class="plain-syntax"> </span><span class="identifier-syntax">text_stream</span><span class="plain-syntax"> *</span><span class="identifier-syntax">OUT</span><span class="plain-syntax"> = </span><a href="2-cg.html#SP12" class="function-link"><span class="function-syntax">CodeGen::current</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">gen</span><span class="plain-syntax">);</span>
|
||||
<span class="plain-syntax"> </span><span class="identifier-syntax">WRITE</span><span class="plain-syntax">(</span><span class="string-syntax">"#define i7_var_%S %d\n"</span><span class="plain-syntax">, </span><span class="identifier-syntax">name</span><span class="plain-syntax">, </span><span class="identifier-syntax">C_var_count</span><span class="plain-syntax">);</span>
|
||||
<span class="plain-syntax"> </span><span class="identifier-syntax">WRITE</span><span class="plain-syntax">(</span><span class="string-syntax">"#define "</span><span class="plain-syntax">);</span>
|
||||
<span class="plain-syntax"> </span><a href="5-cnm.html#SP5" class="function-link"><span class="function-syntax">CNamespace::mangle_variable</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">OUT</span><span class="plain-syntax">, </span><span class="identifier-syntax">identifier</span><span class="plain-syntax">);</span>
|
||||
<span class="plain-syntax"> </span><span class="identifier-syntax">WRITE</span><span class="plain-syntax">(</span><span class="string-syntax">" %d\n"</span><span class="plain-syntax">, </span><span class="identifier-syntax">N</span><span class="plain-syntax">);</span>
|
||||
<span class="plain-syntax"> </span><a href="2-cg.html#SP10" class="function-link"><span class="function-syntax">CodeGen::deselect</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">gen</span><span class="plain-syntax">, </span><span class="identifier-syntax">saved</span><span class="plain-syntax">);</span>
|
||||
</pre>
|
||||
<ul class="endnotetexts"><li>This code is used in <a href="5-cgv.html#SP3">§3</a>.</li></ul>
|
||||
<p class="commentary firstcommentary"><a id="SP3_3" class="paragraph-anchor"></a><b>§3.3. </b><span class="named-paragraph-container code-font"><span class="named-paragraph-defn">Add the initial value for self to the globals array</span><span class="named-paragraph-number">3.3</span></span><span class="comment-syntax"> =</span>
|
||||
</p>
|
||||
|
||||
<span class="plain-syntax"> </span><span class="identifier-syntax">C_var_count</span><span class="plain-syntax">++;</span>
|
||||
<span class="plain-syntax"> </span><a href="2-cg.html#SP11" class="function-link"><span class="function-syntax">CodeGen::select_temporary</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">gen</span><span class="plain-syntax">, </span><span class="identifier-syntax">C_var_vals</span><span class="plain-syntax">);</span>
|
||||
<span class="plain-syntax"> </span><span class="identifier-syntax">WRITE_TO</span><span class="plain-syntax">(</span><span class="identifier-syntax">C_var_vals</span><span class="plain-syntax">, </span><span class="string-syntax">", "</span><span class="plain-syntax">);</span>
|
||||
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">P</span><span class="plain-syntax">) </span><a href="2-cg.html#SP16" class="function-link"><span class="function-syntax">CodeGen::pair</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">gen</span><span class="plain-syntax">, </span><span class="identifier-syntax">P</span><span class="plain-syntax">, </span><span class="identifier-syntax">P</span><span class="plain-syntax">-></span><span class="identifier-syntax">W</span><span class="plain-syntax">.</span><span class="identifier-syntax">data</span><span class="plain-syntax">[</span><span class="identifier-syntax">VAL1_VAR_IFLD</span><span class="plain-syntax">], </span><span class="identifier-syntax">P</span><span class="plain-syntax">-></span><span class="identifier-syntax">W</span><span class="plain-syntax">.</span><span class="identifier-syntax">data</span><span class="plain-syntax">[</span><span class="identifier-syntax">VAL2_VAR_IFLD</span><span class="plain-syntax">]);</span>
|
||||
<span class="plain-syntax"> </span><span class="reserved-syntax">else</span><span class="plain-syntax"> </span><span class="identifier-syntax">WRITE_TO</span><span class="plain-syntax">(</span><span class="identifier-syntax">C_var_vals</span><span class="plain-syntax">, </span><span class="string-syntax">"0"</span><span class="plain-syntax">);</span>
|
||||
<span class="plain-syntax"> </span><a href="2-cg.html#SP11" class="function-link"><span class="function-syntax">CodeGen::deselect_temporary</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">gen</span><span class="plain-syntax">);</span>
|
||||
<span class="plain-syntax"> </span><span class="identifier-syntax">WRITE_TO</span><span class="plain-syntax">(</span><span class="identifier-syntax">C_var_vals</span><span class="plain-syntax">, </span><span class="string-syntax">" /* %S */\n"</span><span class="plain-syntax">, </span><span class="identifier-syntax">name</span><span class="plain-syntax">);</span>
|
||||
<span class="plain-syntax">}</span>
|
||||
|
||||
<span class="reserved-syntax">void</span><span class="plain-syntax"> </span><span class="function-syntax">CGlobals::evaluate_variable</span><button class="popup" onclick="togglePopup('usagePopup6')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup6">Usage of <span class="code-font"><span class="function-syntax">CGlobals::evaluate_variable</span></span>:<br/><a href="5-cgv.html#SP1">§1</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">code_generator</span><span class="plain-syntax"> *</span><span class="identifier-syntax">cgt</span><span class="plain-syntax">, </span><span class="reserved-syntax">code_generation</span><span class="plain-syntax"> *</span><span class="identifier-syntax">gen</span><span class="plain-syntax">, </span><span class="identifier-syntax">inter_symbol</span><span class="plain-syntax"> *</span><span class="identifier-syntax">var_name</span><span class="plain-syntax">, </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">as_reference</span><span class="plain-syntax">) {</span>
|
||||
<pre class="displayed-code all-displayed-code code-font">
|
||||
<span class="plain-syntax"> </span><span class="reserved-syntax">segmentation_pos</span><span class="plain-syntax"> </span><span class="identifier-syntax">saved</span><span class="plain-syntax"> = </span><a href="2-cg.html#SP10" class="function-link"><span class="function-syntax">CodeGen::select</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">gen</span><span class="plain-syntax">, </span><span class="constant-syntax">c_globals_array_I7CGS</span><span class="plain-syntax">);</span>
|
||||
<span class="plain-syntax"> </span><span class="identifier-syntax">text_stream</span><span class="plain-syntax"> *</span><span class="identifier-syntax">OUT</span><span class="plain-syntax"> = </span><a href="2-cg.html#SP12" class="function-link"><span class="function-syntax">CodeGen::current</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">gen</span><span class="plain-syntax">);</span>
|
||||
<span class="plain-syntax"> </span><span class="identifier-syntax">WRITE</span><span class="plain-syntax">(</span><span class="string-syntax">"proc->state.variables[i7_var_%S]"</span><span class="plain-syntax">, </span><span class="identifier-syntax">Inter::Symbols::name</span><span class="plain-syntax">(</span><span class="identifier-syntax">var_name</span><span class="plain-syntax">));</span>
|
||||
<span class="plain-syntax"> </span><span class="identifier-syntax">WRITE</span><span class="plain-syntax">(</span><span class="string-syntax">" 0 /* self */\n"</span><span class="plain-syntax">);</span>
|
||||
<span class="plain-syntax"> </span><a href="2-cg.html#SP10" class="function-link"><span class="function-syntax">CodeGen::deselect</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">gen</span><span class="plain-syntax">, </span><span class="identifier-syntax">saved</span><span class="plain-syntax">);</span>
|
||||
</pre>
|
||||
<ul class="endnotetexts"><li>This code is used in <a href="5-cgv.html#SP3">§3</a>.</li></ul>
|
||||
<p class="commentary firstcommentary"><a id="SP3_4" class="paragraph-anchor"></a><b>§3.4. </b><span class="named-paragraph-container code-font"><span class="named-paragraph-defn">Add the initial value to the globals array</span><span class="named-paragraph-number">3.4</span></span><span class="comment-syntax"> =</span>
|
||||
</p>
|
||||
|
||||
<pre class="displayed-code all-displayed-code code-font">
|
||||
<span class="plain-syntax"> </span><span class="reserved-syntax">segmentation_pos</span><span class="plain-syntax"> </span><span class="identifier-syntax">saved</span><span class="plain-syntax"> = </span><a href="2-cg.html#SP10" class="function-link"><span class="function-syntax">CodeGen::select</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">gen</span><span class="plain-syntax">, </span><span class="constant-syntax">c_globals_array_I7CGS</span><span class="plain-syntax">);</span>
|
||||
<span class="plain-syntax"> </span><span class="identifier-syntax">text_stream</span><span class="plain-syntax"> *</span><span class="identifier-syntax">OUT</span><span class="plain-syntax"> = </span><a href="2-cg.html#SP12" class="function-link"><span class="function-syntax">CodeGen::current</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">gen</span><span class="plain-syntax">);</span>
|
||||
<span class="plain-syntax"> </span><span class="identifier-syntax">WRITE</span><span class="plain-syntax">(</span><span class="string-syntax">", "</span><span class="plain-syntax">);</span>
|
||||
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">var_name</span><span class="plain-syntax">-></span><span class="identifier-syntax">definition</span><span class="plain-syntax">) {</span>
|
||||
<span class="plain-syntax"> </span><span class="identifier-syntax">inter_tree_node</span><span class="plain-syntax"> *</span><span class="identifier-syntax">P</span><span class="plain-syntax"> = </span><span class="identifier-syntax">var_name</span><span class="plain-syntax">-></span><span class="identifier-syntax">definition</span><span class="plain-syntax">;</span>
|
||||
<span class="plain-syntax"> </span><a href="2-cg.html#SP16" class="function-link"><span class="function-syntax">CodeGen::pair</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">gen</span><span class="plain-syntax">, </span><span class="identifier-syntax">P</span><span class="plain-syntax">, </span><span class="identifier-syntax">P</span><span class="plain-syntax">-></span><span class="identifier-syntax">W</span><span class="plain-syntax">.</span><span class="identifier-syntax">data</span><span class="plain-syntax">[</span><span class="identifier-syntax">VAL1_VAR_IFLD</span><span class="plain-syntax">], </span><span class="identifier-syntax">P</span><span class="plain-syntax">-></span><span class="identifier-syntax">W</span><span class="plain-syntax">.</span><span class="identifier-syntax">data</span><span class="plain-syntax">[</span><span class="identifier-syntax">VAL2_VAR_IFLD</span><span class="plain-syntax">]);</span>
|
||||
<span class="plain-syntax"> } </span><span class="reserved-syntax">else</span><span class="plain-syntax"> {</span>
|
||||
<span class="plain-syntax"> </span><span class="identifier-syntax">WRITE</span><span class="plain-syntax">(</span><span class="string-syntax">"0"</span><span class="plain-syntax">);</span>
|
||||
<span class="plain-syntax"> }</span>
|
||||
<span class="plain-syntax"> </span><span class="identifier-syntax">WRITE</span><span class="plain-syntax">(</span><span class="string-syntax">" /* %S */\n"</span><span class="plain-syntax">, </span><span class="identifier-syntax">identifier</span><span class="plain-syntax">);</span>
|
||||
<span class="plain-syntax"> </span><a href="2-cg.html#SP10" class="function-link"><span class="function-syntax">CodeGen::deselect</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">gen</span><span class="plain-syntax">, </span><span class="identifier-syntax">saved</span><span class="plain-syntax">);</span>
|
||||
</pre>
|
||||
<ul class="endnotetexts"><li>This code is used in <a href="5-cgv.html#SP3">§3</a>.</li></ul>
|
||||
<p class="commentary firstcommentary"><a id="SP3_5" class="paragraph-anchor"></a><b>§3.5. </b><span class="named-paragraph-container code-font"><span class="named-paragraph-defn">Define a more legible constant for self to the header target</span><span class="named-paragraph-number">3.5</span></span><span class="comment-syntax"> =</span>
|
||||
</p>
|
||||
|
||||
<pre class="displayed-code all-displayed-code code-font">
|
||||
<span class="plain-syntax"> </span><a href="5-com.html#SP4" class="function-link"><span class="function-syntax">CObjectModel::define_header_constant_for_variable</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">gen</span><span class="plain-syntax">, </span><span class="identifier-syntax">I</span><span class="string-syntax">"self"</span><span class="plain-syntax">, </span><span class="constant-syntax">0</span><span class="plain-syntax">);</span>
|
||||
</pre>
|
||||
<ul class="endnotetexts"><li>This code is used in <a href="5-cgv.html#SP3">§3</a>.</li></ul>
|
||||
<p class="commentary firstcommentary"><a id="SP3_6" class="paragraph-anchor"></a><b>§3.6. </b><span class="named-paragraph-container code-font"><span class="named-paragraph-defn">Define a more legible constant for the header target</span><span class="named-paragraph-number">3.6</span></span><span class="comment-syntax"> =</span>
|
||||
</p>
|
||||
|
||||
<pre class="displayed-code all-displayed-code code-font">
|
||||
<span class="plain-syntax"> </span><span class="identifier-syntax">text_stream</span><span class="plain-syntax"> *</span><span class="identifier-syntax">name</span><span class="plain-syntax"> = </span><span class="identifier-syntax">Metadata::read_optional_textual</span><span class="plain-syntax">(</span>
|
||||
<span class="plain-syntax"> </span><span class="identifier-syntax">Inter::Packages::container</span><span class="plain-syntax">(</span><span class="identifier-syntax">var_name</span><span class="plain-syntax">-></span><span class="identifier-syntax">definition</span><span class="plain-syntax">), </span><span class="identifier-syntax">I</span><span class="string-syntax">"^name"</span><span class="plain-syntax">);</span>
|
||||
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">name</span><span class="plain-syntax">)</span>
|
||||
<span class="plain-syntax"> </span><a href="5-com.html#SP4" class="function-link"><span class="function-syntax">CObjectModel::define_header_constant_for_variable</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">gen</span><span class="plain-syntax">, </span><span class="identifier-syntax">name</span><span class="plain-syntax">, </span><span class="identifier-syntax">N</span><span class="plain-syntax">);</span>
|
||||
<span class="plain-syntax"> </span><span class="reserved-syntax">else</span>
|
||||
<span class="plain-syntax"> </span><a href="5-com.html#SP4" class="function-link"><span class="function-syntax">CObjectModel::define_header_constant_for_variable</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">gen</span><span class="plain-syntax">, </span><span class="identifier-syntax">identifier</span><span class="plain-syntax">, </span><span class="identifier-syntax">N</span><span class="plain-syntax">);</span>
|
||||
</pre>
|
||||
<ul class="endnotetexts"><li>This code is used in <a href="5-cgv.html#SP3">§3</a>.</li></ul>
|
||||
<p class="commentary firstcommentary"><a id="SP4" class="paragraph-anchor"></a><b>§4. </b>Within a process <span class="extract"><span class="extract-syntax">proc</span></span>, the current value of variable <span class="extract"><span class="extract-syntax">i</span></span> is <span class="extract"><span class="extract-syntax">proc->state.variables[i]</span></span>.
|
||||
</p>
|
||||
|
||||
<pre class="displayed-code all-displayed-code code-font">
|
||||
<span class="reserved-syntax">void</span><span class="plain-syntax"> </span><span class="function-syntax">CGlobals::evaluate_variable</span><button class="popup" onclick="togglePopup('usagePopup6')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup6">Usage of <span class="code-font"><span class="function-syntax">CGlobals::evaluate_variable</span></span>:<br/><a href="5-cgv.html#SP1">§1</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">code_generator</span><span class="plain-syntax"> *</span><span class="identifier-syntax">cgt</span><span class="plain-syntax">, </span><span class="reserved-syntax">code_generation</span><span class="plain-syntax"> *</span><span class="identifier-syntax">gen</span><span class="plain-syntax">,</span>
|
||||
<span class="plain-syntax"> </span><span class="identifier-syntax">inter_symbol</span><span class="plain-syntax"> *</span><span class="identifier-syntax">var_name</span><span class="plain-syntax">, </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">as_reference</span><span class="plain-syntax">) {</span>
|
||||
<span class="plain-syntax"> </span><span class="identifier-syntax">text_stream</span><span class="plain-syntax"> *</span><span class="identifier-syntax">OUT</span><span class="plain-syntax"> = </span><a href="2-cg.html#SP12" class="function-link"><span class="function-syntax">CodeGen::current</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">gen</span><span class="plain-syntax">);</span>
|
||||
<span class="plain-syntax"> </span><span class="identifier-syntax">WRITE</span><span class="plain-syntax">(</span><span class="string-syntax">"proc->state.variables["</span><span class="plain-syntax">);</span>
|
||||
<span class="plain-syntax"> </span><a href="5-cnm.html#SP5" class="function-link"><span class="function-syntax">CNamespace::mangle_variable</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">OUT</span><span class="plain-syntax">, </span><span class="identifier-syntax">Inter::Symbols::name</span><span class="plain-syntax">(</span><span class="identifier-syntax">var_name</span><span class="plain-syntax">));</span>
|
||||
<span class="plain-syntax"> </span><span class="identifier-syntax">WRITE</span><span class="plain-syntax">(</span><span class="string-syntax">"]"</span><span class="plain-syntax">);</span>
|
||||
<span class="plain-syntax">}</span>
|
||||
</pre>
|
||||
<p class="commentary firstcommentary"><a id="SP3" class="paragraph-anchor"></a><b>§3. </b></p>
|
||||
|
||||
<pre class="Extracts-displayed-code all-displayed-code code-font">
|
||||
<span class="Extracts-identifier-syntax">i7word_t</span><span class="Extracts-plain-syntax"> </span><span class="Extracts-identifier-syntax">i7_read_variable</span><span class="Extracts-plain-syntax">(</span><span class="Extracts-identifier-syntax">i7process_t</span><span class="Extracts-plain-syntax"> *</span><span class="Extracts-identifier-syntax">proc</span><span class="Extracts-plain-syntax">, </span><span class="Extracts-identifier-syntax">i7word_t</span><span class="Extracts-plain-syntax"> </span><span class="Extracts-identifier-syntax">var_id</span><span class="Extracts-plain-syntax">);</span>
|
||||
<span class="Extracts-identifier-syntax">void</span><span class="Extracts-plain-syntax"> </span><span class="Extracts-identifier-syntax">i7_write_variable</span><span class="Extracts-plain-syntax">(</span><span class="Extracts-identifier-syntax">i7process_t</span><span class="Extracts-plain-syntax"> *</span><span class="Extracts-identifier-syntax">proc</span><span class="Extracts-plain-syntax">, </span><span class="Extracts-identifier-syntax">i7word_t</span><span class="Extracts-plain-syntax"> </span><span class="Extracts-identifier-syntax">var_id</span><span class="Extracts-plain-syntax">, </span><span class="Extracts-identifier-syntax">i7word_t</span><span class="Extracts-plain-syntax"> </span><span class="Extracts-identifier-syntax">val</span><span class="Extracts-plain-syntax">);</span>
|
||||
</pre>
|
||||
<ul class="endnotetexts"><li>This is part of the extract file inform7_clib.h.</li></ul>
|
||||
<pre class="Extracts-displayed-code all-displayed-code code-font">
|
||||
<span class="Extracts-identifier-syntax">i7word_t</span><span class="Extracts-plain-syntax"> </span><span class="Extracts-identifier-syntax">i7_read_variable</span><span class="Extracts-plain-syntax">(</span><span class="Extracts-identifier-syntax">i7process_t</span><span class="Extracts-plain-syntax"> *</span><span class="Extracts-identifier-syntax">proc</span><span class="Extracts-plain-syntax">, </span><span class="Extracts-identifier-syntax">i7word_t</span><span class="Extracts-plain-syntax"> </span><span class="Extracts-identifier-syntax">var_id</span><span class="Extracts-plain-syntax">) {</span>
|
||||
<span class="Extracts-plain-syntax"> </span><span class="Extracts-identifier-syntax">return</span><span class="Extracts-plain-syntax"> </span><span class="Extracts-identifier-syntax">proc</span><span class="Extracts-plain-syntax">-></span><span class="Extracts-identifier-syntax">state</span><span class="Extracts-plain-syntax">.</span><span class="Extracts-identifier-syntax">variables</span><span class="Extracts-plain-syntax">[</span><span class="Extracts-identifier-syntax">var_id</span><span class="Extracts-plain-syntax">];</span>
|
||||
<span class="Extracts-plain-syntax">}</span>
|
||||
<span class="Extracts-identifier-syntax">void</span><span class="Extracts-plain-syntax"> </span><span class="Extracts-identifier-syntax">i7_write_variable</span><span class="Extracts-plain-syntax">(</span><span class="Extracts-identifier-syntax">i7process_t</span><span class="Extracts-plain-syntax"> *</span><span class="Extracts-identifier-syntax">proc</span><span class="Extracts-plain-syntax">, </span><span class="Extracts-identifier-syntax">i7word_t</span><span class="Extracts-plain-syntax"> </span><span class="Extracts-identifier-syntax">var_id</span><span class="Extracts-plain-syntax">, </span><span class="Extracts-identifier-syntax">i7word_t</span><span class="Extracts-plain-syntax"> </span><span class="Extracts-identifier-syntax">val</span><span class="Extracts-plain-syntax">) {</span>
|
||||
<span class="Extracts-plain-syntax"> </span><span class="Extracts-identifier-syntax">proc</span><span class="Extracts-plain-syntax">-></span><span class="Extracts-identifier-syntax">state</span><span class="Extracts-plain-syntax">.</span><span class="Extracts-identifier-syntax">variables</span><span class="Extracts-plain-syntax">[</span><span class="Extracts-identifier-syntax">var_id</span><span class="Extracts-plain-syntax">] = </span><span class="Extracts-identifier-syntax">val</span><span class="Extracts-plain-syntax">;</span>
|
||||
<span class="Extracts-plain-syntax">}</span>
|
||||
</pre>
|
||||
<ul class="endnotetexts"><li>This is part of the extract file inform7_clib.c.</li></ul>
|
||||
<nav role="progress"><div class="progresscontainer">
|
||||
<ul class="progressbar"><li class="progressprev"><a href="5-crf.html">❮</a></li><li class="progresschapter"><a href="1-fm.html">1</a></li><li class="progresschapter"><a href="2-cg.html">2</a></li><li class="progresschapter"><a href="3-fti.html">3</a></li><li class="progresschapter"><a href="4-fi6.html">4</a></li><li class="progresscurrentchapter">5</li><li class="progresssection"><a href="5-fnc.html">fnc</a></li><li class="progresssection"><a href="5-cnm.html">cnm</a></li><li class="progresssection"><a href="5-crf.html">crf</a></li><li class="progresscurrent">cgv</li><li class="progresssection"><a href="5-cmm.html">cmm</a></li><li class="progresssection"><a href="5-cas.html">cas</a></li><li class="progresssection"><a href="5-cpc.html">cpc</a></li><li class="progresssection"><a href="5-car.html">car</a></li><li class="progresssection"><a href="5-ccn.html">ccn</a></li><li class="progresssection"><a href="5-com.html">com</a></li><li class="progresssection"><a href="5-cfm.html">cfm</a></li><li class="progresssection"><a href="5-clt.html">clt</a></li><li class="progresssection"><a href="5-cim.html">cim</a></li><li class="progresssection"><a href="5-cuf.html">cuf</a></li><li class="progressnext"><a href="5-cmm.html">❯</a></li></ul></div>
|
||||
</nav><!--End of weave-->
|
||||
|
|
|
|||
|
|
@ -78,7 +78,7 @@ function togglePopup(material_id) {
|
|||
<pre class="displayed-code all-displayed-code code-font">
|
||||
<span class="reserved-syntax">void</span><span class="plain-syntax"> </span><span class="function-syntax">CNamespace::initialise</span><button class="popup" onclick="togglePopup('usagePopup1')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup1">Usage of <span class="code-font"><span class="function-syntax">CNamespace::initialise</span></span>:<br/>Final C - <a href="5-fnc.html#SP1">§1</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">code_generator</span><span class="plain-syntax"> *</span><span class="identifier-syntax">cgt</span><span class="plain-syntax">) {</span>
|
||||
<span class="plain-syntax"> </span><span class="identifier-syntax">METHOD_ADD</span><span class="plain-syntax">(</span><span class="identifier-syntax">cgt</span><span class="plain-syntax">, </span><span class="constant-syntax">MANGLE_IDENTIFIER_MTID</span><span class="plain-syntax">, </span><a href="5-cnm.html#SP3" class="function-link"><span class="function-syntax">CNamespace::mangle</span></a><span class="plain-syntax">);</span>
|
||||
<span class="plain-syntax"> </span><span class="identifier-syntax">METHOD_ADD</span><span class="plain-syntax">(</span><span class="identifier-syntax">cgt</span><span class="plain-syntax">, </span><span class="constant-syntax">DECLARE_CONSTANT_MTID</span><span class="plain-syntax">, </span><a href="5-cnm.html#SP6" class="function-link"><span class="function-syntax">CNamespace::declare_constant</span></a><span class="plain-syntax">);</span>
|
||||
<span class="plain-syntax"> </span><span class="identifier-syntax">METHOD_ADD</span><span class="plain-syntax">(</span><span class="identifier-syntax">cgt</span><span class="plain-syntax">, </span><span class="constant-syntax">DECLARE_CONSTANT_MTID</span><span class="plain-syntax">, </span><a href="5-cnm.html#SP7" class="function-link"><span class="function-syntax">CNamespace::declare_constant</span></a><span class="plain-syntax">);</span>
|
||||
<span class="plain-syntax">}</span>
|
||||
</pre>
|
||||
<p class="commentary firstcommentary"><a id="SP2" class="paragraph-anchor"></a><b>§2. </b>A fundamental decision we have to make here is what namespace of identifiers
|
||||
|
|
@ -110,7 +110,7 @@ sparingly in Inter, and these can never arise.
|
|||
</p>
|
||||
|
||||
<pre class="displayed-code all-displayed-code code-font">
|
||||
<span class="reserved-syntax">void</span><span class="plain-syntax"> </span><span class="function-syntax">CNamespace::mangle</span><button class="popup" onclick="togglePopup('usagePopup2')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup2">Usage of <span class="code-font"><span class="function-syntax">CNamespace::mangle</span></span>:<br/><a href="5-cnm.html#SP1">§1</a>, <a href="5-cnm.html#SP6">§6</a><br/>C Memory Model - <a href="5-cmm.html#SP11_2">§11.2</a>, <a href="5-cmm.html#SP11_3">§11.3</a>, <a href="5-cmm.html#SP15">§15</a><br/>C Object Model - <a href="5-com.html#SP1_3">§1.3</a>, <a href="5-com.html#SP1_5">§1.5</a>, <a href="5-com.html#SP4">§4</a>, <a href="5-com.html#SP7">§7</a>, <a href="5-com.html#SP8">§8</a><br/>C Function Model - <a href="5-cfm.html#SP1">§1</a><br/>C Literals - <a href="5-clt.html#SP2">§2</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">code_generator</span><span class="plain-syntax"> *</span><span class="identifier-syntax">cgt</span><span class="plain-syntax">, </span><span class="identifier-syntax">OUTPUT_STREAM</span><span class="plain-syntax">, </span><span class="identifier-syntax">text_stream</span><span class="plain-syntax"> *</span><span class="identifier-syntax">identifier</span><span class="plain-syntax">) {</span>
|
||||
<span class="reserved-syntax">void</span><span class="plain-syntax"> </span><span class="function-syntax">CNamespace::mangle</span><button class="popup" onclick="togglePopup('usagePopup2')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup2">Usage of <span class="code-font"><span class="function-syntax">CNamespace::mangle</span></span>:<br/><a href="5-cnm.html#SP1">§1</a>, <a href="5-cnm.html#SP7">§7</a><br/>C Memory Model - <a href="5-cmm.html#SP11_2">§11.2</a>, <a href="5-cmm.html#SP11_3">§11.3</a>, <a href="5-cmm.html#SP15">§15</a><br/>C Object Model - <a href="5-com.html#SP1_3">§1.3</a>, <a href="5-com.html#SP1_5">§1.5</a>, <a href="5-com.html#SP4">§4</a>, <a href="5-com.html#SP7">§7</a>, <a href="5-com.html#SP8">§8</a><br/>C Function Model - <a href="5-cfm.html#SP1">§1</a><br/>C Literals - <a href="5-clt.html#SP2">§2</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">code_generator</span><span class="plain-syntax"> *</span><span class="identifier-syntax">cgt</span><span class="plain-syntax">, </span><span class="identifier-syntax">OUTPUT_STREAM</span><span class="plain-syntax">, </span><span class="identifier-syntax">text_stream</span><span class="plain-syntax"> *</span><span class="identifier-syntax">identifier</span><span class="plain-syntax">) {</span>
|
||||
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">Str::get_first_char</span><span class="plain-syntax">(</span><span class="identifier-syntax">identifier</span><span class="plain-syntax">) == </span><span class="character-syntax">'#'</span><span class="plain-syntax">) {</span>
|
||||
<span class="plain-syntax"> </span><span class="identifier-syntax">WRITE</span><span class="plain-syntax">(</span><span class="string-syntax">"i7_ss_"</span><span class="plain-syntax">);</span>
|
||||
<span class="plain-syntax"> </span><span class="identifier-syntax">LOOP_THROUGH_TEXT</span><span class="plain-syntax">(</span><span class="identifier-syntax">pos</span><span class="plain-syntax">, </span><span class="identifier-syntax">identifier</span><span class="plain-syntax">)</span>
|
||||
|
|
@ -136,7 +136,18 @@ example:
|
|||
<span class="plain-syntax"> </span><span class="identifier-syntax">PUT</span><span class="plain-syntax">(</span><span class="identifier-syntax">Str::get</span><span class="plain-syntax">(</span><span class="identifier-syntax">pos</span><span class="plain-syntax">));</span>
|
||||
<span class="plain-syntax">}</span>
|
||||
</pre>
|
||||
<p class="commentary firstcommentary"><a id="SP5" class="paragraph-anchor"></a><b>§5. </b>Local variable names have to be handled slightly differently. This is because
|
||||
<p class="commentary firstcommentary"><a id="SP5" class="paragraph-anchor"></a><b>§5. </b>Global variable names are similarly mangled:
|
||||
</p>
|
||||
|
||||
<pre class="displayed-code all-displayed-code code-font">
|
||||
<span class="plain-syntax"> howmayyou i7_var_howmayyou</span>
|
||||
</pre>
|
||||
<pre class="displayed-code all-displayed-code code-font">
|
||||
<span class="reserved-syntax">void</span><span class="plain-syntax"> </span><span class="function-syntax">CNamespace::mangle_variable</span><button class="popup" onclick="togglePopup('usagePopup4')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup4">Usage of <span class="code-font"><span class="function-syntax">CNamespace::mangle_variable</span></span>:<br/>C Global Variables - <a href="5-cgv.html#SP3_1">§3.1</a>, <a href="5-cgv.html#SP3_2">§3.2</a>, <a href="5-cgv.html#SP4">§4</a></span></button><span class="plain-syntax">(</span><span class="identifier-syntax">OUTPUT_STREAM</span><span class="plain-syntax">, </span><span class="identifier-syntax">text_stream</span><span class="plain-syntax"> *</span><span class="identifier-syntax">var</span><span class="plain-syntax">) {</span>
|
||||
<span class="plain-syntax"> </span><span class="identifier-syntax">WRITE</span><span class="plain-syntax">(</span><span class="string-syntax">"i7_var_%S"</span><span class="plain-syntax">, </span><span class="identifier-syntax">var</span><span class="plain-syntax">);</span>
|
||||
<span class="plain-syntax">}</span>
|
||||
</pre>
|
||||
<p class="commentary firstcommentary"><a id="SP6" class="paragraph-anchor"></a><b>§6. </b>Local variable names have to be handled slightly differently. This is because
|
||||
Inter frequently makes use of local variables whose identifiers are also used
|
||||
for some global construct. Of course, C also allows for this: for example —
|
||||
</p>
|
||||
|
|
@ -181,8 +192,8 @@ to begin with <span class="extract"><span class="extract-syntax">local_</span></
|
|||
</p>
|
||||
|
||||
<pre class="displayed-code all-displayed-code code-font">
|
||||
<span class="reserved-syntax">void</span><span class="plain-syntax"> </span><span class="function-syntax">CNamespace::fix_locals</span><button class="popup" onclick="togglePopup('usagePopup4')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup4">Usage of <span class="code-font"><span class="function-syntax">CNamespace::fix_locals</span></span>:<br/>Final C - <a href="5-fnc.html#SP5">§5</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">code_generation</span><span class="plain-syntax"> *</span><span class="identifier-syntax">gen</span><span class="plain-syntax">) {</span>
|
||||
<span class="plain-syntax"> </span><span class="identifier-syntax">InterTree::traverse</span><span class="plain-syntax">(</span><span class="identifier-syntax">gen</span><span class="plain-syntax">-></span><span class="element-syntax">from</span><span class="plain-syntax">, </span><a href="5-cnm.html#SP5" class="function-link"><span class="function-syntax">CNamespace::sweep_for_locals</span></a><span class="plain-syntax">, </span><span class="identifier-syntax">gen</span><span class="plain-syntax">, </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">, </span><span class="identifier-syntax">LOCAL_IST</span><span class="plain-syntax">);</span>
|
||||
<span class="reserved-syntax">void</span><span class="plain-syntax"> </span><span class="function-syntax">CNamespace::fix_locals</span><button class="popup" onclick="togglePopup('usagePopup5')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup5">Usage of <span class="code-font"><span class="function-syntax">CNamespace::fix_locals</span></span>:<br/>Final C - <a href="5-fnc.html#SP5">§5</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">code_generation</span><span class="plain-syntax"> *</span><span class="identifier-syntax">gen</span><span class="plain-syntax">) {</span>
|
||||
<span class="plain-syntax"> </span><span class="identifier-syntax">InterTree::traverse</span><span class="plain-syntax">(</span><span class="identifier-syntax">gen</span><span class="plain-syntax">-></span><span class="element-syntax">from</span><span class="plain-syntax">, </span><a href="5-cnm.html#SP6" class="function-link"><span class="function-syntax">CNamespace::sweep_for_locals</span></a><span class="plain-syntax">, </span><span class="identifier-syntax">gen</span><span class="plain-syntax">, </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">, </span><span class="identifier-syntax">LOCAL_IST</span><span class="plain-syntax">);</span>
|
||||
<span class="plain-syntax">}</span>
|
||||
|
||||
<span class="reserved-syntax">void</span><span class="plain-syntax"> </span><span class="function-syntax">CNamespace::sweep_for_locals</span><span class="plain-syntax">(</span><span class="identifier-syntax">inter_tree</span><span class="plain-syntax"> *</span><span class="identifier-syntax">I</span><span class="plain-syntax">, </span><span class="identifier-syntax">inter_tree_node</span><span class="plain-syntax"> *</span><span class="identifier-syntax">P</span><span class="plain-syntax">, </span><span class="reserved-syntax">void</span><span class="plain-syntax"> *</span><span class="identifier-syntax">state</span><span class="plain-syntax">) {</span>
|
||||
|
|
@ -195,12 +206,12 @@ to begin with <span class="extract"><span class="extract-syntax">local_</span></
|
|||
<span class="plain-syntax"> </span><span class="identifier-syntax">DISCARD_TEXT</span><span class="plain-syntax">(</span><span class="identifier-syntax">T</span><span class="plain-syntax">)</span>
|
||||
<span class="plain-syntax">}</span>
|
||||
</pre>
|
||||
<p class="commentary firstcommentary"><a id="SP6" class="paragraph-anchor"></a><b>§6. </b>Constants in Inter are indeed directly converted to <span class="extract"><span class="extract-syntax">#define</span></span>d constants in C,
|
||||
<p class="commentary firstcommentary"><a id="SP7" class="paragraph-anchor"></a><b>§7. </b>Constants in Inter are indeed directly converted to <span class="extract"><span class="extract-syntax">#define</span></span>d constants in C,
|
||||
but with their names of course mangled:
|
||||
</p>
|
||||
|
||||
<pre class="displayed-code all-displayed-code code-font">
|
||||
<span class="reserved-syntax">void</span><span class="plain-syntax"> </span><span class="function-syntax">CNamespace::declare_constant</span><button class="popup" onclick="togglePopup('usagePopup5')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup5">Usage of <span class="code-font"><span class="function-syntax">CNamespace::declare_constant</span></span>:<br/><a href="5-cnm.html#SP1">§1</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">code_generator</span><span class="plain-syntax"> *</span><span class="identifier-syntax">cgt</span><span class="plain-syntax">, </span><span class="reserved-syntax">code_generation</span><span class="plain-syntax"> *</span><span class="identifier-syntax">gen</span><span class="plain-syntax">,</span>
|
||||
<span class="reserved-syntax">void</span><span class="plain-syntax"> </span><span class="function-syntax">CNamespace::declare_constant</span><button class="popup" onclick="togglePopup('usagePopup6')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup6">Usage of <span class="code-font"><span class="function-syntax">CNamespace::declare_constant</span></span>:<br/><a href="5-cnm.html#SP1">§1</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">code_generator</span><span class="plain-syntax"> *</span><span class="identifier-syntax">cgt</span><span class="plain-syntax">, </span><span class="reserved-syntax">code_generation</span><span class="plain-syntax"> *</span><span class="identifier-syntax">gen</span><span class="plain-syntax">,</span>
|
||||
<span class="plain-syntax"> </span><span class="identifier-syntax">inter_symbol</span><span class="plain-syntax"> *</span><span class="identifier-syntax">const_s</span><span class="plain-syntax">, </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">form</span><span class="plain-syntax">, </span><span class="identifier-syntax">text_stream</span><span class="plain-syntax"> *</span><span class="identifier-syntax">val</span><span class="plain-syntax">) {</span>
|
||||
<span class="plain-syntax"> </span><span class="reserved-syntax">segmentation_pos</span><span class="plain-syntax"> </span><span class="identifier-syntax">saved</span><span class="plain-syntax"> = </span><a href="2-cg.html#SP10" class="function-link"><span class="function-syntax">CodeGen::select_layered</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">gen</span><span class="plain-syntax">, </span><span class="constant-syntax">c_constants_I7CGS</span><span class="plain-syntax">,</span>
|
||||
<span class="plain-syntax"> </span><span class="identifier-syntax">Inter::Constant::constant_depth</span><span class="plain-syntax">(</span><span class="identifier-syntax">const_s</span><span class="plain-syntax">));</span>
|
||||
|
|
|
|||
|
|
@ -495,7 +495,7 @@ defining this as a constant equal to its ID.
|
|||
<span class="plain-syntax"> </span><a href="2-cg.html#SP10" class="function-link"><span class="function-syntax">CodeGen::deselect</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">gen</span><span class="plain-syntax">, </span><span class="identifier-syntax">saved</span><span class="plain-syntax">);</span>
|
||||
<span class="plain-syntax">}</span>
|
||||
|
||||
<span class="reserved-syntax">void</span><span class="plain-syntax"> </span><span class="function-syntax">CObjectModel::define_header_constant_for_variable</span><button class="popup" onclick="togglePopup('usagePopup19')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup19">Usage of <span class="code-font"><span class="function-syntax">CObjectModel::define_header_constant_for_variable</span></span>:<br/>C Global Variables - <a href="5-cgv.html#SP2">§2</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">code_generation</span><span class="plain-syntax"> *</span><span class="identifier-syntax">gen</span><span class="plain-syntax">, </span><span class="identifier-syntax">text_stream</span><span class="plain-syntax"> *</span><span class="identifier-syntax">var_name</span><span class="plain-syntax">,</span>
|
||||
<span class="reserved-syntax">void</span><span class="plain-syntax"> </span><span class="function-syntax">CObjectModel::define_header_constant_for_variable</span><button class="popup" onclick="togglePopup('usagePopup19')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup19">Usage of <span class="code-font"><span class="function-syntax">CObjectModel::define_header_constant_for_variable</span></span>:<br/>C Global Variables - <a href="5-cgv.html#SP3_5">§3.5</a>, <a href="5-cgv.html#SP3_6">§3.6</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">code_generation</span><span class="plain-syntax"> *</span><span class="identifier-syntax">gen</span><span class="plain-syntax">, </span><span class="identifier-syntax">text_stream</span><span class="plain-syntax"> *</span><span class="identifier-syntax">var_name</span><span class="plain-syntax">,</span>
|
||||
<span class="plain-syntax"> </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">id</span><span class="plain-syntax">) {</span>
|
||||
<span class="plain-syntax"> </span><span class="reserved-syntax">segmentation_pos</span><span class="plain-syntax"> </span><span class="identifier-syntax">saved</span><span class="plain-syntax"> = </span><a href="2-cg.html#SP10" class="function-link"><span class="function-syntax">CodeGen::select</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">gen</span><span class="plain-syntax">, </span><span class="constant-syntax">c_variable_symbols_I7CGS</span><span class="plain-syntax">);</span>
|
||||
<span class="plain-syntax"> </span><span class="identifier-syntax">text_stream</span><span class="plain-syntax"> *</span><span class="identifier-syntax">OUT</span><span class="plain-syntax"> = </span><a href="2-cg.html#SP12" class="function-link"><span class="function-syntax">CodeGen::current</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">gen</span><span class="plain-syntax">);</span>
|
||||
|
|
|
|||
|
|
@ -68,6 +68,22 @@
|
|||
|
||||
<p class="commentary firstcommentary"><a id="SP1" class="paragraph-anchor"></a><b>§1. </b></p>
|
||||
|
||||
<pre class="Extracts-displayed-code all-displayed-code code-font">
|
||||
<span class="Extracts-identifier-syntax">i7word_t</span><span class="Extracts-plain-syntax"> </span><span class="Extracts-identifier-syntax">i7_read_variable</span><span class="Extracts-plain-syntax">(</span><span class="Extracts-identifier-syntax">i7process_t</span><span class="Extracts-plain-syntax"> *</span><span class="Extracts-identifier-syntax">proc</span><span class="Extracts-plain-syntax">, </span><span class="Extracts-identifier-syntax">i7word_t</span><span class="Extracts-plain-syntax"> </span><span class="Extracts-identifier-syntax">var_id</span><span class="Extracts-plain-syntax">);</span>
|
||||
<span class="Extracts-identifier-syntax">void</span><span class="Extracts-plain-syntax"> </span><span class="Extracts-identifier-syntax">i7_write_variable</span><span class="Extracts-plain-syntax">(</span><span class="Extracts-identifier-syntax">i7process_t</span><span class="Extracts-plain-syntax"> *</span><span class="Extracts-identifier-syntax">proc</span><span class="Extracts-plain-syntax">, </span><span class="Extracts-identifier-syntax">i7word_t</span><span class="Extracts-plain-syntax"> </span><span class="Extracts-identifier-syntax">var_id</span><span class="Extracts-plain-syntax">, </span><span class="Extracts-identifier-syntax">i7word_t</span><span class="Extracts-plain-syntax"> </span><span class="Extracts-identifier-syntax">val</span><span class="Extracts-plain-syntax">);</span>
|
||||
</pre>
|
||||
<ul class="endnotetexts"><li>This is part of the extract file inform7_clib.h.</li></ul>
|
||||
<pre class="Extracts-displayed-code all-displayed-code code-font">
|
||||
<span class="Extracts-identifier-syntax">i7word_t</span><span class="Extracts-plain-syntax"> </span><span class="Extracts-identifier-syntax">i7_read_variable</span><span class="Extracts-plain-syntax">(</span><span class="Extracts-identifier-syntax">i7process_t</span><span class="Extracts-plain-syntax"> *</span><span class="Extracts-identifier-syntax">proc</span><span class="Extracts-plain-syntax">, </span><span class="Extracts-identifier-syntax">i7word_t</span><span class="Extracts-plain-syntax"> </span><span class="Extracts-identifier-syntax">var_id</span><span class="Extracts-plain-syntax">) {</span>
|
||||
<span class="Extracts-plain-syntax"> </span><span class="Extracts-identifier-syntax">return</span><span class="Extracts-plain-syntax"> </span><span class="Extracts-identifier-syntax">proc</span><span class="Extracts-plain-syntax">-></span><span class="Extracts-identifier-syntax">state</span><span class="Extracts-plain-syntax">.</span><span class="Extracts-identifier-syntax">variables</span><span class="Extracts-plain-syntax">[</span><span class="Extracts-identifier-syntax">var_id</span><span class="Extracts-plain-syntax">];</span>
|
||||
<span class="Extracts-plain-syntax">}</span>
|
||||
<span class="Extracts-identifier-syntax">void</span><span class="Extracts-plain-syntax"> </span><span class="Extracts-identifier-syntax">i7_write_variable</span><span class="Extracts-plain-syntax">(</span><span class="Extracts-identifier-syntax">i7process_t</span><span class="Extracts-plain-syntax"> *</span><span class="Extracts-identifier-syntax">proc</span><span class="Extracts-plain-syntax">, </span><span class="Extracts-identifier-syntax">i7word_t</span><span class="Extracts-plain-syntax"> </span><span class="Extracts-identifier-syntax">var_id</span><span class="Extracts-plain-syntax">, </span><span class="Extracts-identifier-syntax">i7word_t</span><span class="Extracts-plain-syntax"> </span><span class="Extracts-identifier-syntax">val</span><span class="Extracts-plain-syntax">) {</span>
|
||||
<span class="Extracts-plain-syntax"> </span><span class="Extracts-identifier-syntax">proc</span><span class="Extracts-plain-syntax">-></span><span class="Extracts-identifier-syntax">state</span><span class="Extracts-plain-syntax">.</span><span class="Extracts-identifier-syntax">variables</span><span class="Extracts-plain-syntax">[</span><span class="Extracts-identifier-syntax">var_id</span><span class="Extracts-plain-syntax">] = </span><span class="Extracts-identifier-syntax">val</span><span class="Extracts-plain-syntax">;</span>
|
||||
<span class="Extracts-plain-syntax">}</span>
|
||||
</pre>
|
||||
<ul class="endnotetexts"><li>This is part of the extract file inform7_clib.c.</li></ul>
|
||||
<p class="commentary firstcommentary"><a id="SP2" class="paragraph-anchor"></a><b>§2. </b></p>
|
||||
|
||||
<pre class="Extracts-displayed-code all-displayed-code code-font">
|
||||
<span class="Extracts-identifier-syntax">char</span><span class="Extracts-plain-syntax"> *</span><span class="Extracts-identifier-syntax">i7_read_string</span><span class="Extracts-plain-syntax">(</span><span class="Extracts-identifier-syntax">i7process_t</span><span class="Extracts-plain-syntax"> *</span><span class="Extracts-identifier-syntax">proc</span><span class="Extracts-plain-syntax">, </span><span class="Extracts-identifier-syntax">i7word_t</span><span class="Extracts-plain-syntax"> </span><span class="Extracts-identifier-syntax">S</span><span class="Extracts-plain-syntax">);</span>
|
||||
<span class="Extracts-identifier-syntax">void</span><span class="Extracts-plain-syntax"> </span><span class="Extracts-identifier-syntax">i7_write_string</span><span class="Extracts-plain-syntax">(</span><span class="Extracts-identifier-syntax">i7process_t</span><span class="Extracts-plain-syntax"> *</span><span class="Extracts-identifier-syntax">proc</span><span class="Extracts-plain-syntax">, </span><span class="Extracts-identifier-syntax">i7word_t</span><span class="Extracts-plain-syntax"> </span><span class="Extracts-identifier-syntax">S</span><span class="Extracts-plain-syntax">, </span><span class="Extracts-identifier-syntax">char</span><span class="Extracts-plain-syntax"> *</span><span class="Extracts-identifier-syntax">A</span><span class="Extracts-plain-syntax">);</span>
|
||||
|
|
@ -128,7 +144,7 @@
|
|||
<span class="Extracts-plain-syntax">}</span>
|
||||
</pre>
|
||||
<ul class="endnotetexts"><li>This is part of the extract file inform7_clib.c.</li></ul>
|
||||
<p class="commentary firstcommentary"><a id="SP2" class="paragraph-anchor"></a><b>§2. </b></p>
|
||||
<p class="commentary firstcommentary"><a id="SP3" class="paragraph-anchor"></a><b>§3. </b></p>
|
||||
|
||||
<pre class="Extracts-displayed-code all-displayed-code code-font">
|
||||
<span class="Extracts-plain-syntax">#</span><span class="Extracts-identifier-syntax">endif</span>
|
||||
|
|
|
|||
|
|
@ -183,6 +183,7 @@ code can interface with it. Both are divided into segments. The main file thus:
|
|||
<span class="plain-syntax"> </span><span class="reserved-syntax">struct</span><span class="plain-syntax"> </span><span class="reserved-syntax">C_generation_function_model_data</span><span class="plain-syntax"> </span><span class="identifier-syntax">fndata</span><span class="plain-syntax">;</span>
|
||||
<span class="plain-syntax"> </span><span class="reserved-syntax">struct</span><span class="plain-syntax"> </span><span class="reserved-syntax">C_generation_object_model_data</span><span class="plain-syntax"> </span><span class="identifier-syntax">objdata</span><span class="plain-syntax">;</span>
|
||||
<span class="plain-syntax"> </span><span class="reserved-syntax">struct</span><span class="plain-syntax"> </span><span class="reserved-syntax">C_generation_literals_model_data</span><span class="plain-syntax"> </span><span class="identifier-syntax">litdata</span><span class="plain-syntax">;</span>
|
||||
<span class="plain-syntax"> </span><span class="reserved-syntax">struct</span><span class="plain-syntax"> </span><span class="reserved-syntax">C_generation_variables_data</span><span class="plain-syntax"> </span><span class="identifier-syntax">vardata</span><span class="plain-syntax">;</span>
|
||||
<span class="plain-syntax"> </span><span class="identifier-syntax">CLASS_DEFINITION</span>
|
||||
<span class="plain-syntax">} </span><span class="reserved-syntax">C_generation_data</span><span class="plain-syntax">;</span>
|
||||
|
||||
|
|
@ -213,12 +214,12 @@ manage the process.
|
|||
<span class="plain-syntax"> </span><span class="named-paragraph-container code-font"><a href="5-fnc.html#SP5_2" class="named-paragraph-link"><span class="named-paragraph">Compile the Clib header inclusion and some clang pragmas</span><span class="named-paragraph-number">5.2</span></a></span><span class="plain-syntax">;</span>
|
||||
<span class="plain-syntax"> </span><span class="named-paragraph-container code-font"><a href="5-fnc.html#SP5_3" class="named-paragraph-link"><span class="named-paragraph">Compile the Clib code inclusion</span><span class="named-paragraph-number">5.3</span></a></span><span class="plain-syntax">;</span>
|
||||
|
||||
<span class="plain-syntax"> </span><a href="5-cnm.html#SP5" class="function-link"><span class="function-syntax">CNamespace::fix_locals</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">gen</span><span class="plain-syntax">);</span>
|
||||
<span class="plain-syntax"> </span><a href="5-cnm.html#SP6" class="function-link"><span class="function-syntax">CNamespace::fix_locals</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">gen</span><span class="plain-syntax">);</span>
|
||||
<span class="plain-syntax"> </span><a href="5-cmm.html#SP3" class="function-link"><span class="function-syntax">CMemoryModel::begin</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">gen</span><span class="plain-syntax">);</span>
|
||||
<span class="plain-syntax"> </span><a href="5-cfm.html#SP1" class="function-link"><span class="function-syntax">CFunctionModel::begin</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">gen</span><span class="plain-syntax">);</span>
|
||||
<span class="plain-syntax"> </span><a href="5-com.html#SP1" class="function-link"><span class="function-syntax">CObjectModel::begin</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">gen</span><span class="plain-syntax">);</span>
|
||||
<span class="plain-syntax"> </span><a href="5-clt.html#SP1" class="function-link"><span class="function-syntax">CLiteralsModel::begin</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">gen</span><span class="plain-syntax">);</span>
|
||||
<span class="plain-syntax"> </span><a href="5-cgv.html#SP1" class="function-link"><span class="function-syntax">CGlobals::begin</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">gen</span><span class="plain-syntax">);</span>
|
||||
<span class="plain-syntax"> </span><a href="5-cgv.html#SP2" class="function-link"><span class="function-syntax">CGlobals::begin</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">gen</span><span class="plain-syntax">);</span>
|
||||
<span class="plain-syntax"> </span><a href="5-cas.html#SP1" class="function-link"><span class="function-syntax">CAssembly::begin</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">gen</span><span class="plain-syntax">);</span>
|
||||
<span class="plain-syntax"> </span><a href="5-cim.html#SP1" class="function-link"><span class="function-syntax">CInputOutputModel::begin</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">gen</span><span class="plain-syntax">);</span>
|
||||
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">;</span>
|
||||
|
|
@ -281,7 +282,7 @@ manage the process.
|
|||
<span class="plain-syntax"> </span><a href="5-cfm.html#SP1" class="function-link"><span class="function-syntax">CFunctionModel::end</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">gen</span><span class="plain-syntax">);</span>
|
||||
<span class="plain-syntax"> </span><a href="5-com.html#SP1" class="function-link"><span class="function-syntax">CObjectModel::end</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">gen</span><span class="plain-syntax">);</span>
|
||||
<span class="plain-syntax"> </span><a href="5-clt.html#SP1" class="function-link"><span class="function-syntax">CLiteralsModel::end</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">gen</span><span class="plain-syntax">);</span>
|
||||
<span class="plain-syntax"> </span><a href="5-cgv.html#SP1" class="function-link"><span class="function-syntax">CGlobals::end</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">gen</span><span class="plain-syntax">);</span>
|
||||
<span class="plain-syntax"> </span><a href="5-cgv.html#SP2" class="function-link"><span class="function-syntax">CGlobals::end</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">gen</span><span class="plain-syntax">);</span>
|
||||
<span class="plain-syntax"> </span><a href="5-cas.html#SP1" class="function-link"><span class="function-syntax">CAssembly::end</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">gen</span><span class="plain-syntax">);</span>
|
||||
<span class="plain-syntax"> </span><a href="5-cim.html#SP1" class="function-link"><span class="function-syntax">CInputOutputModel::end</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">gen</span><span class="plain-syntax">);</span>
|
||||
<span class="plain-syntax"> </span><a href="5-cmm.html#SP4" class="function-link"><span class="function-syntax">CMemoryModel::end</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">gen</span><span class="plain-syntax">); </span><span class="comment-syntax"> must be last to end</span>
|
||||
|
|
|
|||
|
|
@ -1,24 +1,24 @@
|
|||
100.0% in inform7 run
|
||||
55.3% in compilation to Inter
|
||||
39.8% in //Sequence::undertake_queued_tasks//
|
||||
3.5% in //MajorNodes::pre_pass//
|
||||
55.1% in compilation to Inter
|
||||
39.7% in //Sequence::undertake_queued_tasks//
|
||||
3.4% in //MajorNodes::pre_pass//
|
||||
2.6% in //MajorNodes::pass_1//
|
||||
2.0% in //RTPhrasebook::compile_entries//
|
||||
1.3% in //ImperativeDefinitions::assess_all//
|
||||
1.0% in //RTKindConstructors::compile//
|
||||
1.2% in //RTKindConstructors::compile//
|
||||
0.4% in //ImperativeDefinitions::compile_first_block//
|
||||
0.4% in //MajorNodes::pass_2//
|
||||
0.4% in //Sequence::undertake_queued_tasks//
|
||||
0.4% in //Sequence::undertake_queued_tasks//
|
||||
0.4% in //World::stage_V//
|
||||
0.1% in //CompletionModule::compile//
|
||||
0.2% in //CompletionModule::compile//
|
||||
0.1% in //InferenceSubjects::emit_all//
|
||||
0.1% in //RTKindConstructors::compile_permissions//
|
||||
0.1% in //Task::make_built_in_kind_constructors//
|
||||
0.1% in //World::stages_II_and_III//
|
||||
2.1% not specifically accounted for
|
||||
42.7% in running Inter pipeline
|
||||
12.1% in step preparation
|
||||
1.8% not specifically accounted for
|
||||
42.9% in running Inter pipeline
|
||||
12.2% in step preparation
|
||||
9.7% in inter step 7/16: consolidate-text
|
||||
7.9% in inter step 2/16: link
|
||||
6.4% in inter step 16/16: generate inform6 -> auto.inf
|
||||
|
|
|
|||
|
|
@ -90,12 +90,6 @@ void i7_fatal_exit(i7process_t *proc) {
|
|||
void i7_benign_exit(i7process_t *proc) {
|
||||
longjmp(proc->execution_env, 2);
|
||||
}
|
||||
i7word_t i7_read_variable(i7process_t *proc, i7word_t var_id) {
|
||||
return proc->state.variables[var_id];
|
||||
}
|
||||
void i7_write_variable(i7process_t *proc, i7word_t var_id, i7word_t val) {
|
||||
proc->state.variables[var_id] = val;
|
||||
}
|
||||
i7byte_t i7_initial_memory[];
|
||||
void i7_initialise_state(i7process_t *proc) {
|
||||
if (proc->state.memory != NULL) free(proc->state.memory);
|
||||
|
|
@ -1713,6 +1707,12 @@ void i7_print_box(i7process_t *proc, i7word_t x) {
|
|||
i7word_t fn_i7_mgl_pending_boxed_quotation(i7process_t *proc) {
|
||||
return 0;
|
||||
}
|
||||
i7word_t i7_read_variable(i7process_t *proc, i7word_t var_id) {
|
||||
return proc->state.variables[var_id];
|
||||
}
|
||||
void i7_write_variable(i7process_t *proc, i7word_t var_id, i7word_t val) {
|
||||
proc->state.variables[var_id] = val;
|
||||
}
|
||||
i7word_t fn_i7_mgl_TEXT_TY_Transmute(i7process_t *proc, i7word_t i7_mgl_local_txt);
|
||||
i7word_t fn_i7_mgl_BlkValueRead(i7process_t *proc, i7word_t i7_mgl_local_from, i7word_t i7_mgl_local_pos, i7word_t i7_mgl_local_do_not_indirect, i7word_t i7_mgl_local_long_block, i7word_t i7_mgl_local_chunk_size_in_bytes, i7word_t i7_mgl_local_header_size_in_bytes, i7word_t i7_mgl_local_flags, i7word_t i7_mgl_local_entry_size_in_bytes, i7word_t i7_mgl_local_seek_byte_position);
|
||||
i7word_t fn_i7_mgl_BlkValueWrite(i7process_t *proc, i7word_t i7_mgl_local_to, i7word_t i7_mgl_local_pos, i7word_t i7_mgl_local_val, i7word_t i7_mgl_local_do_not_indirect, i7word_t i7_mgl_local_long_block, i7word_t i7_mgl_local_chunk_size_in_bytes, i7word_t i7_mgl_local_header_size_in_bytes, i7word_t i7_mgl_local_flags, i7word_t i7_mgl_local_entry_size_in_bytes, i7word_t i7_mgl_local_seek_byte_position);
|
||||
|
|
|
|||
|
|
@ -68,8 +68,6 @@ void i7_initializer(i7process_t *proc); /* part of the compiled story, not infor
|
|||
#define i7_lvalue_POSTINC 5
|
||||
#define i7_lvalue_SETBIT 6
|
||||
#define i7_lvalue_CLEARBIT 7
|
||||
i7word_t i7_read_variable(i7process_t *proc, i7word_t var_id);
|
||||
void i7_write_variable(i7process_t *proc, i7word_t var_id, i7word_t val);
|
||||
void i7_initialise_state(i7process_t *proc);
|
||||
void i7_copy_state(i7process_t *proc, i7state_t *to, i7state_t *from);
|
||||
void i7_destroy_state(i7process_t *proc, i7state_t *s);
|
||||
|
|
@ -449,6 +447,8 @@ void i7_print_name(i7process_t *proc, i7word_t x);
|
|||
void i7_print_object(i7process_t *proc, i7word_t x);
|
||||
void i7_print_box(i7process_t *proc, i7word_t x);
|
||||
void i7_read(i7process_t *proc, i7word_t x);
|
||||
i7word_t i7_read_variable(i7process_t *proc, i7word_t var_id);
|
||||
void i7_write_variable(i7process_t *proc, i7word_t var_id, i7word_t val);
|
||||
char *i7_read_string(i7process_t *proc, i7word_t S);
|
||||
void i7_write_string(i7process_t *proc, i7word_t S, char *A);
|
||||
i7word_t *i7_read_list(i7process_t *proc, i7word_t S, int *N);
|
||||
|
|
|
|||
|
|
@ -2,88 +2,122 @@
|
|||
|
||||
Global variables translated to C.
|
||||
|
||||
@h Setting up the model.
|
||||
|
||||
=
|
||||
@ =
|
||||
void CGlobals::initialise(code_generator *cgt) {
|
||||
METHOD_ADD(cgt, DECLARE_VARIABLES_MTID, CGlobals::declare_variables);
|
||||
METHOD_ADD(cgt, EVALUATE_VARIABLE_MTID, CGlobals::evaluate_variable);
|
||||
}
|
||||
|
||||
int C_var_count = 1;
|
||||
text_stream *C_var_vals = NULL;
|
||||
typedef struct C_generation_variables_data {
|
||||
int no_variables;
|
||||
} C_generation_variables_data;
|
||||
|
||||
void CGlobals::initialise_data(code_generation *gen) {
|
||||
C_var_count = 1;
|
||||
C_var_vals = Str::new();
|
||||
C_GEN_DATA(vardata.no_variables) = 1;
|
||||
}
|
||||
|
||||
@ The basic scheme is this: the global Inter variables are going to have
|
||||
their values stored in an array, so to identify which variable you are reading
|
||||
or writing, you need an index (i.e., position) in that array.
|
||||
|
||||
The main thing we need to compile is a (static) array of initial values for
|
||||
these variables, so that a new process can be initialised. But we must also
|
||||
define constants to refer to their positions in the array.
|
||||
|
||||
=
|
||||
void CGlobals::begin(code_generation *gen) {
|
||||
}
|
||||
|
||||
void CGlobals::end(code_generation *gen) {
|
||||
segmentation_pos saved = CodeGen::select(gen, c_ids_and_maxima_I7CGS);
|
||||
text_stream *OUT = CodeGen::current(gen);
|
||||
|
||||
WRITE("#define i7_no_variables %d\n", C_var_count);
|
||||
WRITE("#define i7_var_self 0\n");
|
||||
WRITE("i7word_t i7_initial_variable_values[];\n");
|
||||
CodeGen::deselect(gen, saved);
|
||||
|
||||
saved = CodeGen::select(gen, c_globals_array_I7CGS);
|
||||
OUT = CodeGen::current(gen);
|
||||
WRITE("i7word_t i7_initial_variable_values[] = { 0 %S };\n", C_var_vals);
|
||||
WRITE("#define i7_no_variables %d\n", C_GEN_DATA(vardata.no_variables));
|
||||
WRITE("i7word_t i7_initial_variable_values[i7_no_variables];\n");
|
||||
CodeGen::deselect(gen, saved);
|
||||
}
|
||||
|
||||
@
|
||||
@ We will assign the global variables unique index numbers 0, 1, 2, ..., with
|
||||
the special variable |self| given index 0. Note that |self| always exists,
|
||||
but has no Inter declaration node.
|
||||
|
||||
=
|
||||
void CGlobals::declare_variables(code_generator *cgt, code_generation *gen, linked_list *L) {
|
||||
segmentation_pos saved = CodeGen::select(gen, c_globals_array_I7CGS);
|
||||
text_stream *OUT = CodeGen::current(gen);
|
||||
WRITE("i7word_t i7_initial_variable_values[i7_no_variables] = {\n");
|
||||
|
||||
@<Define a constant for the self position in the globals array@>;
|
||||
@<Add the initial value for self to the globals array@>;
|
||||
@<Define a more legible constant for self to the header target@>;
|
||||
|
||||
int N = 1;
|
||||
inter_symbol *var_name;
|
||||
LOOP_OVER_LINKED_LIST(var_name, inter_symbol, L) {
|
||||
inter_tree_node *P = var_name->definition;
|
||||
CGlobals::declare_variable_by_name(gen, Inter::Symbols::name(var_name), P);
|
||||
text_stream *name = Metadata::read_optional_textual(Inter::Packages::container(var_name->definition), I"^name");
|
||||
if (name)
|
||||
CObjectModel::define_header_constant_for_variable(gen, name, C_var_count - 1);
|
||||
else
|
||||
CObjectModel::define_header_constant_for_variable(gen, Inter::Symbols::name(var_name), C_var_count - 1);
|
||||
text_stream *identifier = Inter::Symbols::name(var_name);
|
||||
@<Define a constant for this position in the globals array@>;
|
||||
@<Add the initial value to the globals array@>;
|
||||
@<Define a more legible constant for the header target@>;
|
||||
N++;
|
||||
}
|
||||
C_GEN_DATA(vardata.no_variables) = N;
|
||||
|
||||
WRITE("};\n");
|
||||
CodeGen::deselect(gen, saved);
|
||||
}
|
||||
|
||||
void CGlobals::declare_variable_by_name(code_generation *gen, text_stream *name,
|
||||
inter_tree_node *P) {
|
||||
segmentation_pos saved = CodeGen::select(gen, c_predeclarations_I7CGS);
|
||||
@<Define a constant for the self position in the globals array@> =
|
||||
segmentation_pos saved = CodeGen::select(gen, c_ids_and_maxima_I7CGS);
|
||||
text_stream *OUT = CodeGen::current(gen);
|
||||
WRITE("#define i7_var_%S %d\n", name, C_var_count);
|
||||
WRITE("#define ");
|
||||
CNamespace::mangle_variable(OUT, I"self");
|
||||
WRITE(" 0\n");
|
||||
CodeGen::deselect(gen, saved);
|
||||
|
||||
C_var_count++;
|
||||
CodeGen::select_temporary(gen, C_var_vals);
|
||||
WRITE_TO(C_var_vals, ", ");
|
||||
if (P) CodeGen::pair(gen, P, P->W.data[VAL1_VAR_IFLD], P->W.data[VAL2_VAR_IFLD]);
|
||||
else WRITE_TO(C_var_vals, "0");
|
||||
CodeGen::deselect_temporary(gen);
|
||||
WRITE_TO(C_var_vals, " /* %S */\n", name);
|
||||
}
|
||||
|
||||
void CGlobals::evaluate_variable(code_generator *cgt, code_generation *gen, inter_symbol *var_name, int as_reference) {
|
||||
@<Define a constant for this position in the globals array@> =
|
||||
segmentation_pos saved = CodeGen::select(gen, c_predeclarations_I7CGS);
|
||||
text_stream *OUT = CodeGen::current(gen);
|
||||
WRITE("proc->state.variables[i7_var_%S]", Inter::Symbols::name(var_name));
|
||||
}
|
||||
@
|
||||
WRITE("#define ");
|
||||
CNamespace::mangle_variable(OUT, identifier);
|
||||
WRITE(" %d\n", N);
|
||||
CodeGen::deselect(gen, saved);
|
||||
|
||||
= (text to inform7_clib.h)
|
||||
i7word_t i7_read_variable(i7process_t *proc, i7word_t var_id);
|
||||
void i7_write_variable(i7process_t *proc, i7word_t var_id, i7word_t val);
|
||||
=
|
||||
@<Add the initial value for self to the globals array@> =
|
||||
segmentation_pos saved = CodeGen::select(gen, c_globals_array_I7CGS);
|
||||
text_stream *OUT = CodeGen::current(gen);
|
||||
WRITE(" 0 /* self */\n");
|
||||
CodeGen::deselect(gen, saved);
|
||||
|
||||
@<Add the initial value to the globals array@> =
|
||||
segmentation_pos saved = CodeGen::select(gen, c_globals_array_I7CGS);
|
||||
text_stream *OUT = CodeGen::current(gen);
|
||||
WRITE(", ");
|
||||
if (var_name->definition) {
|
||||
inter_tree_node *P = var_name->definition;
|
||||
CodeGen::pair(gen, P, P->W.data[VAL1_VAR_IFLD], P->W.data[VAL2_VAR_IFLD]);
|
||||
} else {
|
||||
WRITE("0");
|
||||
}
|
||||
WRITE(" /* %S */\n", identifier);
|
||||
CodeGen::deselect(gen, saved);
|
||||
|
||||
@<Define a more legible constant for self to the header target@> =
|
||||
CObjectModel::define_header_constant_for_variable(gen, I"self", 0);
|
||||
|
||||
@<Define a more legible constant for the header target@> =
|
||||
text_stream *name = Metadata::read_optional_textual(
|
||||
Inter::Packages::container(var_name->definition), I"^name");
|
||||
if (name)
|
||||
CObjectModel::define_header_constant_for_variable(gen, name, N);
|
||||
else
|
||||
CObjectModel::define_header_constant_for_variable(gen, identifier, N);
|
||||
|
||||
@ Within a process |proc|, the current value of variable |i| is |proc->state.variables[i]|.
|
||||
|
||||
= (text to inform7_clib.c)
|
||||
i7word_t i7_read_variable(i7process_t *proc, i7word_t var_id) {
|
||||
return proc->state.variables[var_id];
|
||||
}
|
||||
void i7_write_variable(i7process_t *proc, i7word_t var_id, i7word_t val) {
|
||||
proc->state.variables[var_id] = val;
|
||||
}
|
||||
=
|
||||
void CGlobals::evaluate_variable(code_generator *cgt, code_generation *gen,
|
||||
inter_symbol *var_name, int as_reference) {
|
||||
text_stream *OUT = CodeGen::current(gen);
|
||||
WRITE("proc->state.variables[");
|
||||
CNamespace::mangle_variable(OUT, Inter::Symbols::name(var_name));
|
||||
WRITE("]");
|
||||
}
|
||||
|
|
|
|||
|
|
@ -57,6 +57,16 @@ void CNamespace::mangle_opcode(code_generator *cgt, OUTPUT_STREAM, text_stream *
|
|||
PUT(Str::get(pos));
|
||||
}
|
||||
|
||||
@ Global variable names are similarly mangled:
|
||||
= (text)
|
||||
howmayyou i7_var_howmayyou
|
||||
=
|
||||
|
||||
=
|
||||
void CNamespace::mangle_variable(OUTPUT_STREAM, text_stream *var) {
|
||||
WRITE("i7_var_%S", var);
|
||||
}
|
||||
|
||||
@ Local variable names have to be handled slightly differently. This is because
|
||||
Inter frequently makes use of local variables whose identifiers are also used
|
||||
for some global construct. Of course, C also allows for this: for example --
|
||||
|
|
|
|||
|
|
@ -4,6 +4,22 @@ Rounding out the C library with a few functions intended for external code to us
|
|||
|
||||
@
|
||||
|
||||
= (text to inform7_clib.h)
|
||||
i7word_t i7_read_variable(i7process_t *proc, i7word_t var_id);
|
||||
void i7_write_variable(i7process_t *proc, i7word_t var_id, i7word_t val);
|
||||
=
|
||||
|
||||
= (text to inform7_clib.c)
|
||||
i7word_t i7_read_variable(i7process_t *proc, i7word_t var_id) {
|
||||
return proc->state.variables[var_id];
|
||||
}
|
||||
void i7_write_variable(i7process_t *proc, i7word_t var_id, i7word_t val) {
|
||||
proc->state.variables[var_id] = val;
|
||||
}
|
||||
=
|
||||
|
||||
@
|
||||
|
||||
= (text to inform7_clib.h)
|
||||
char *i7_read_string(i7process_t *proc, i7word_t S);
|
||||
void i7_write_string(i7process_t *proc, i7word_t S, char *A);
|
||||
|
|
|
|||
|
|
@ -107,6 +107,7 @@ typedef struct C_generation_data {
|
|||
struct C_generation_function_model_data fndata;
|
||||
struct C_generation_object_model_data objdata;
|
||||
struct C_generation_literals_model_data litdata;
|
||||
struct C_generation_variables_data vardata;
|
||||
CLASS_DEFINITION
|
||||
} C_generation_data;
|
||||
|
||||
|
|
|
|||
Loading…
Reference in a new issue