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Adding the operation of unary minus #27

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Adding the operation of unary minus #27

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26 changes: 26 additions & 0 deletions eplan.iml
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Original file line number Diff line number Diff line change
@@ -0,0 +1,26 @@
<?xml version="1.0" encoding="UTF-8"?>
<module org.jetbrains.idea.maven.project.MavenProjectsManager.isMavenModule="true" type="JAVA_MODULE" version="4">
<component name="NewModuleRootManager" LANGUAGE_LEVEL="JDK_1_8" inherit-compiler-output="false">
<output url="file://$MODULE_DIR$/target/classes" />
<output-test url="file://$MODULE_DIR$/target/test-classes" />
<content url="file://$MODULE_DIR$">
<sourceFolder url="file://$MODULE_DIR$/src/main/java" isTestSource="false" />
<sourceFolder url="file://$MODULE_DIR$/target/generated-sources/cup" isTestSource="false" generated="true" />
<sourceFolder url="file://$MODULE_DIR$/target/generated-sources/jflex" isTestSource="false" generated="true" />
<excludeFolder url="file://$MODULE_DIR$/target/classes" />
<excludeFolder url="file://$MODULE_DIR$/target/maven-archiver" />
<excludeFolder url="file://$MODULE_DIR$/target/surefire" />
</content>
<orderEntry type="inheritedJdk" />
<orderEntry type="sourceFolder" forTests="false" />
<orderEntry type="library" name="Maven: com.beust:jcommander:1.58" level="project" />
<orderEntry type="library" name="Maven: com.github.vbmacher:java-cup-runtime:11b-20160615" level="project" />
<orderEntry type="library" name="Maven: org.apache.commons:commons-lang3:3.4" level="project" />
<orderEntry type="library" name="Maven: io.javaslang:javaslang:2.0.4" level="project" />
<orderEntry type="library" name="Maven: io.javaslang:javaslang-match:2.0.4" level="project" />
<orderEntry type="library" name="Maven: io.javaslang:javaslang-render:2.0.0" level="project" />
<orderEntry type="library" name="Maven: org.bytedeco.javacpp-presets:llvm:3.8.0-1.2" level="project" />
<orderEntry type="library" name="Maven: org.bytedeco:javacpp:1.2" level="project" />
<orderEntry type="library" name="Maven: org.bytedeco.javacpp-presets:llvm:linux-x86_64:3.8.0-1.2" level="project" />
</component>
</module>
7 changes: 4 additions & 3 deletions src/main/cup/parser.cup
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Expand Up @@ -52,6 +52,7 @@ term ::=
;

factor ::=
LITNUM:x {: RESULT = new ExpNum(x); :}
| LPAREN exp:x RPAREN {: RESULT = x; :}
;
LITNUM:x {: RESULT = new ExpNum(x); :}
| MINUS factor:x {: RESULT = new ExpNegate(x); :}
| LPAREN exp:x RPAREN {: RESULT = x; :}
;
30 changes: 30 additions & 0 deletions src/main/java/absyn/ExpNegate.java
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package absyn;


import javaslang.collection.Tree;
import static org.bytedeco.javacpp.LLVM.*;

/**
* Created by christian on 10/20/16.
*/

public class ExpNegate extends Exp{

public final Exp arg;

public ExpNegate(Exp arg) {
this.arg = arg;
}

@Override
public LLVMValueRef codegen(LLVMModuleRef module, LLVMBuilderRef builder) {
final LLVMValueRef v_arg = arg.codegen(module,builder);
final LLVMValueRef zero = LLVMConstReal(LLVMDoubleType(), 0);
return LLVMBuildFSub(builder, zero, v_arg, "subtmp");
}

@Override
public Tree.Node<String> toTree() {
return Tree.of("ExpNegate", arg.toTree());
}
}