JavaScript: Open-source extractor.

javascript/extractor/src/com/semmle/js/ast/MethodDefinition.java

@@ -0,0 +1,65 @@
+package com.semmle.js.ast;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public class MethodDefinition extends MemberDefinition<FunctionExpression> {
+	public enum Kind {
+		CONSTRUCTOR, METHOD, GET, SET, FUNCTION_CALL_SIGNATURE, CONSTRUCTOR_CALL_SIGNATURE, INDEX_SIGNATURE
+	};
+
+	private final Kind kind;
+	private final List<FieldDefinition> parameterFields;
+
+	public MethodDefinition(SourceLocation loc, int flags, Kind kind, Expression key, FunctionExpression value) {
+		this(loc, flags, kind, key, value, new ArrayList<>());
+	}
+
+	public MethodDefinition(SourceLocation loc, int flags, Kind kind, Expression key, FunctionExpression value,
+			List<FieldDefinition> parameterFields) {
+		super("MethodDefinition", loc, flags, key, value);
+		this.kind = kind;
+		this.parameterFields = parameterFields;
+	}
+
+
+	public Kind getKind() {
+		return kind;
+	}
+
+	@Override
+	public boolean isCallSignature() {
+		return kind == Kind.FUNCTION_CALL_SIGNATURE || kind == Kind.CONSTRUCTOR_CALL_SIGNATURE;
+	}
+
+	@Override
+	public boolean isIndexSignature() {
+		return kind == Kind.INDEX_SIGNATURE;
+	}
+
+	@Override
+	public boolean isConstructor() {
+		return !isStatic() && !isComputed() && "constructor".equals(getName());
+	}
+
+	@Override
+	public boolean isConcrete() {
+		return getValue().getBody() != null;
+	}
+
+	@Override
+	public <C, R> R accept(Visitor<C, R> v, C c) {
+		return v.visit(this, c);
+	}
+
+	/**
+	 * Returns the parameter fields synthesized for initializing constructor
+	 * parameters, if this is a constructor, or an empty list otherwise.
+	 * <p>
+	 * The index in this list does not correspond to the parameter index, as there
+	 * can be ordinary parameters interleaved with parameter fields.
+	 */
+	public List<FieldDefinition> getParameterFields() {
+		return parameterFields;
+	}
+}