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package org.zwobble.couscous.ast;
import com.google.common.collect.ImmutableList;
import org.zwobble.couscous.ast.visitors.NodeMapper;
import org.zwobble.couscous.ast.visitors.NodeTransformer;
import org.zwobble.couscous.values.UnitValue;
import java.util.List;
import java.util.function.Function;
import static org.zwobble.couscous.util.ExtraLists.eagerMap;
public class MethodNode implements CallableNode {
public static Builder staticMethod(String name) {
return builder(name).isStatic(true);
}
public static Builder builder(String name) {
return new Builder(name);
}
public static class Builder {
private final ImmutableList.Builder<AnnotationNode> annotations =
ImmutableList.builder();
private boolean isStatic = false;
private final String name;
private final ImmutableList.Builder<FormalArgumentNode> arguments =
ImmutableList.builder();
private TypeName returnType = UnitValue.REF;
private final ImmutableList.Builder<StatementNode> body =
ImmutableList.builder();
public Builder(String name) {
this.name = name;
}
public Builder annotations(List<AnnotationNode> annotations) {
this.annotations.addAll(annotations);
return this;
}
public Builder isStatic(boolean isStatic) {
this.isStatic = isStatic;
return this;
}
public Builder argument(FormalArgumentNode argument) {
arguments.add(argument);
return this;
}
public Builder arguments(List<FormalArgumentNode> arguments) {
this.arguments.addAll(arguments);
return this;
}
public Builder returns(TypeName returnType) {
this.returnType = returnType;
return this;
}
public Builder statement(StatementNode statement) {
this.body.add(statement);
return this;
}
public Builder body(List<StatementNode> statements) {
this.body.addAll(statements);
return this;
}
public MethodNode build() {
return new MethodNode(
annotations.build(),
isStatic,
name,
arguments.build(),
returnType,
body.build());
}
}
public static MethodNode method(
List<AnnotationNode> annotations,
boolean isStatic,
String name,
List<FormalArgumentNode> arguments,
TypeName returnType,
List<StatementNode> body)
{
return new MethodNode(annotations, isStatic, name, arguments, returnType, body);
}
private final List<AnnotationNode> annotations;
private final boolean isStatic;
private final String name;
private final List<FormalArgumentNode> arguments;
private final TypeName returnType;
private final List<StatementNode> body;
private MethodNode(
List<AnnotationNode> annotations,
boolean isStatic,
String name,
List<FormalArgumentNode> arguments,
TypeName returnType,
List<StatementNode> body)
{
this.annotations = annotations;
this.isStatic = isStatic;
this.name = name;
this.arguments = arguments;
this.returnType = returnType;
this.body = body;
}
public List<AnnotationNode> getAnnotations() {
return annotations;
}
public boolean isStatic() {
return isStatic;
}
public String getName() {
return name;
}
public List<FormalArgumentNode> getArguments() {
return arguments;
}
public TypeName getReturnType() {
return returnType;
}
public List<StatementNode> getBody() {
return body;
}
public MethodSignature signature() {
return new MethodSignature(
name,
eagerMap(arguments, argument -> argument.getType()));
}
public MethodNode mapBody(Function<List<StatementNode>, List<StatementNode>> function) {
return new MethodNode(annotations, isStatic, name, arguments, returnType, function.apply(body));
}
@Override
public <T> T accept(NodeMapper<T> visitor) {
return visitor.visit(this);
}
public MethodNode transform(NodeTransformer transformer) {
return new MethodNode(
transformer.transformAnnotations(annotations),
isStatic,
transformer.transformMethodName(signature()),
transformer.transformFormalArguments(arguments),
transformer.transform(returnType),
transformer.transformStatements(body));
}
@Override
public String toString() {
return "MethodNode(" +
"annotations=" + annotations +
", isStatic=" + isStatic +
", name=" + name +
", arguments=" + arguments +
", returnType=" + returnType +
", body=" + body +
')';
}
@Override
public boolean equals(Object o) {
if (this == o) return true;
if (o == null || getClass() != o.getClass()) return false;
MethodNode that = (MethodNode) o;
if (isStatic != that.isStatic) return false;
if (!annotations.equals(that.annotations)) return false;
if (!name.equals(that.name)) return false;
if (!arguments.equals(that.arguments)) return false;
if (!returnType.equals(that.returnType)) return false;
return body.equals(that.body);
}
@Override
public int hashCode() {
int result = annotations.hashCode();
result = 31 * result + (isStatic ? 1 : 0);
result = 31 * result + name.hashCode();
result = 31 * result + arguments.hashCode();
result = 31 * result + returnType.hashCode();
result = 31 * result + body.hashCode();
return result;
}
}
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