63 lines
1.9 KiB
Java
63 lines
1.9 KiB
Java
package abstractSyntaxTree.StatementExpression;
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import TypeCheck.AbstractType;
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import TypeCheck.TypeCheckResult;
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import abstractSyntaxTree.Class.MethodDecl;
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import abstractSyntaxTree.Datatype.RefType;
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import abstractSyntaxTree.Expression.IExpression;
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import abstractSyntaxTree.Statement.IStatement;
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import org.objectweb.asm.MethodVisitor;
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import org.objectweb.asm.Opcodes;
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import java.util.List;
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public class MethodCallStatementExpression extends AbstractType implements IExpression, IStatement {
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String methodName;
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List<IExpression> arguments;
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RefType classThatHasTheMethodIfNotThis;
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RefType thisClass;
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public MethodCallStatementExpression(String methodName, List<IExpression> arguments) {
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this.methodName = methodName;
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this.arguments = arguments;
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}
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@Override
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public TypeCheckResult typeCheck() throws Exception {
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TypeCheckResult result = new TypeCheckResult();
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RefType searchMethodHere;
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if(classThatHasTheMethodIfNotThis == null){
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searchMethodHere = thisClass;
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} else {
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searchMethodHere = classThatHasTheMethodIfNotThis;
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}
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List<MethodDecl> methods = searchMethodHere.methodDecls;
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if(!methods.contains(methodName)){
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throw new Exception("method not found");
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}
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return result;
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}
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@Override
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public void CodeGen(MethodVisitor mv) throws Exception {
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//Generate Bytecode for the receiver
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if(classThatHasTheMethodIfNotThis != null){
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classThatHasTheMethodIfNotThis.CodeGen(mv);
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} else {
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mv.visitVarInsn(Opcodes.ALOAD, 0);
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}
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for (IExpression argument : arguments) {
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argument.CodeGen(mv);
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}
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//We need the class reference and the return type of the method
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//mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, thisClass.name, methodName, return type);
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}
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}
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