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com.google.gwt.dev.jjs.impl.ToStringGenerationVisitor Maven / Gradle / Ivy
/*
* Copyright 2008 Google Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not
* use this file except in compliance with the License. You may obtain a copy of
* the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations under
* the License.
*/
package com.google.gwt.dev.jjs.impl;
import com.google.gwt.dev.jjs.ast.CanBeAbstract;
import com.google.gwt.dev.jjs.ast.CanBeFinal;
import com.google.gwt.dev.jjs.ast.CanBeStatic;
import com.google.gwt.dev.jjs.ast.Context;
import com.google.gwt.dev.jjs.ast.HasName;
import com.google.gwt.dev.jjs.ast.HasType;
import com.google.gwt.dev.jjs.ast.JArrayLength;
import com.google.gwt.dev.jjs.ast.JArrayRef;
import com.google.gwt.dev.jjs.ast.JArrayType;
import com.google.gwt.dev.jjs.ast.JAssertStatement;
import com.google.gwt.dev.jjs.ast.JBinaryOperation;
import com.google.gwt.dev.jjs.ast.JBlock;
import com.google.gwt.dev.jjs.ast.JBooleanLiteral;
import com.google.gwt.dev.jjs.ast.JBreakStatement;
import com.google.gwt.dev.jjs.ast.JCaseStatement;
import com.google.gwt.dev.jjs.ast.JCastMap;
import com.google.gwt.dev.jjs.ast.JCastOperation;
import com.google.gwt.dev.jjs.ast.JCharLiteral;
import com.google.gwt.dev.jjs.ast.JClassLiteral;
import com.google.gwt.dev.jjs.ast.JConditional;
import com.google.gwt.dev.jjs.ast.JConstructor;
import com.google.gwt.dev.jjs.ast.JContinueStatement;
import com.google.gwt.dev.jjs.ast.JDeclarationStatement;
import com.google.gwt.dev.jjs.ast.JDeclaredType;
import com.google.gwt.dev.jjs.ast.JDoStatement;
import com.google.gwt.dev.jjs.ast.JDoubleLiteral;
import com.google.gwt.dev.jjs.ast.JExpression;
import com.google.gwt.dev.jjs.ast.JExpressionStatement;
import com.google.gwt.dev.jjs.ast.JField;
import com.google.gwt.dev.jjs.ast.JFieldRef;
import com.google.gwt.dev.jjs.ast.JFloatLiteral;
import com.google.gwt.dev.jjs.ast.JForStatement;
import com.google.gwt.dev.jjs.ast.JIfStatement;
import com.google.gwt.dev.jjs.ast.JInstanceOf;
import com.google.gwt.dev.jjs.ast.JIntLiteral;
import com.google.gwt.dev.jjs.ast.JLabel;
import com.google.gwt.dev.jjs.ast.JLabeledStatement;
import com.google.gwt.dev.jjs.ast.JLocal;
import com.google.gwt.dev.jjs.ast.JLocalRef;
import com.google.gwt.dev.jjs.ast.JLongLiteral;
import com.google.gwt.dev.jjs.ast.JMethod;
import com.google.gwt.dev.jjs.ast.JMethodBody;
import com.google.gwt.dev.jjs.ast.JMethodCall;
import com.google.gwt.dev.jjs.ast.JNameOf;
import com.google.gwt.dev.jjs.ast.JNewArray;
import com.google.gwt.dev.jjs.ast.JNewInstance;
import com.google.gwt.dev.jjs.ast.JNode;
import com.google.gwt.dev.jjs.ast.JNullLiteral;
import com.google.gwt.dev.jjs.ast.JParameter;
import com.google.gwt.dev.jjs.ast.JParameterRef;
import com.google.gwt.dev.jjs.ast.JPermutationDependentValue;
import com.google.gwt.dev.jjs.ast.JPostfixOperation;
import com.google.gwt.dev.jjs.ast.JPrefixOperation;
import com.google.gwt.dev.jjs.ast.JPrimitiveType;
import com.google.gwt.dev.jjs.ast.JProgram;
import com.google.gwt.dev.jjs.ast.JReferenceType;
import com.google.gwt.dev.jjs.ast.JReturnStatement;
import com.google.gwt.dev.jjs.ast.JRuntimeTypeReference;
import com.google.gwt.dev.jjs.ast.JStatement;
import com.google.gwt.dev.jjs.ast.JStringLiteral;
import com.google.gwt.dev.jjs.ast.JSwitchStatement;
import com.google.gwt.dev.jjs.ast.JThisRef;
import com.google.gwt.dev.jjs.ast.JThrowStatement;
import com.google.gwt.dev.jjs.ast.JTryStatement;
import com.google.gwt.dev.jjs.ast.JType;
import com.google.gwt.dev.jjs.ast.JWhileStatement;
import com.google.gwt.dev.jjs.ast.js.JDebuggerStatement;
import com.google.gwt.dev.jjs.ast.js.JMultiExpression;
import com.google.gwt.dev.jjs.ast.js.JsniFieldRef;
import com.google.gwt.dev.jjs.ast.js.JsniMethodBody;
import com.google.gwt.dev.jjs.ast.js.JsniMethodRef;
import com.google.gwt.dev.jjs.ast.js.JsonArray;
import com.google.gwt.dev.js.JsSourceGenerationVisitor;
import com.google.gwt.dev.util.TextOutput;
import java.util.Iterator;
/**
* Implements a reasonable toString() for all JNodes. The goal is to print a
* recognizable declaration for large constructs (classes, methods) for easy use
* in a debugger. Expressions and Statements should look like Java code
* fragments.
*/
public class ToStringGenerationVisitor extends TextOutputVisitor {
protected static final char[] CHARS_ABSTRACT = "abstract ".toCharArray();
protected static final char[] CHARS_ASSERT = "assert ".toCharArray();
protected static final char[] CHARS_BREAK = "break".toCharArray();
protected static final char[] CHARS_CASE = "case ".toCharArray();
protected static final char[] CHARS_CATCH = " catch ".toCharArray();
protected static final char[] CHARS_CLASS = "class ".toCharArray();
protected static final char[] CHARS_COMMA = ", ".toCharArray();
protected static final char[] CHARS_CONTINUE = "continue".toCharArray();
protected static final char[] CHARS_DEFAULT = "default".toCharArray();
protected static final char[] CHARS_DO = "do".toCharArray();
protected static final char[] CHARS_DOTCLASS = ".class".toCharArray();
protected static final char[] CHARS_ELSE = "else".toCharArray();
protected static final char[] CHARS_EXTENDS = "extends ".toCharArray();
protected static final char[] CHARS_FALSE = "false".toCharArray();
protected static final char[] CHARS_FINAL = "final ".toCharArray();
protected static final char[] CHARS_FINALLY = " finally ".toCharArray();
protected static final char[] CHARS_FOR = "for ".toCharArray();
protected static final char[] CHARS_IF = "if ".toCharArray();
protected static final char[] CHARS_IMPLEMENTS = "implements ".toCharArray();
protected static final char[] CHARS_INSTANCEOF = " instanceof ".toCharArray();
protected static final char[] CHARS_INTERFACE = "interface ".toCharArray();
protected static final char[] CHARS_NAMEOF = " JNameOf ".toCharArray();
protected static final char[] CHARS_NATIVE = "native ".toCharArray();
protected static final char[] CHARS_NEW = "new ".toCharArray();
protected static final char[] CHARS_NULL = "null".toCharArray();
protected static final char[] CHARS_PIPE = " | ".toCharArray();
protected static final char[] CHARS_PRIVATE = "private ".toCharArray();
protected static final char[] CHARS_PROTECTED = "protected ".toCharArray();
protected static final char[] CHARS_PUBLIC = "public ".toCharArray();
protected static final char[] CHARS_RETURN = "return".toCharArray();
protected static final char[] CHARS_RUNTIMETYPEREFERENCE =
" JRuntimeTypeReference ".toCharArray();
protected static final char[] CHARS_SLASHSTAR = "/*".toCharArray();
protected static final char[] CHARS_STARSLASH = "*/".toCharArray();
protected static final char[] CHARS_STATIC = "static ".toCharArray();
protected static final char[] CHARS_SUPER = "super".toCharArray();
protected static final char[] CHARS_SWITCH = "switch ".toCharArray();
protected static final char[] CHARS_THIS = "this".toCharArray();
protected static final char[] CHARS_THROW = "throw".toCharArray();
protected static final char[] CHARS_TRUE = "true".toCharArray();
protected static final char[] CHARS_TRY = "try ".toCharArray();
protected static final char[] CHARS_WHILE = "while ".toCharArray();
private boolean needSemi = true;
private boolean suppressType = false;
public ToStringGenerationVisitor(TextOutput textOutput) {
super(textOutput);
}
@Override
public boolean visit(JArrayLength x, Context ctx) {
JExpression instance = x.getInstance();
parenPush(x, instance);
accept(instance);
parenPop(x, instance);
print(".length");
return false;
}
@Override
public boolean visit(JArrayRef x, Context ctx) {
JExpression instance = x.getInstance();
parenPush(x, instance);
accept(instance);
parenPop(x, instance);
print('[');
accept(x.getIndexExpr());
print(']');
return false;
}
@Override
public boolean visit(JArrayType x, Context ctx) {
accept(x.getElementType());
print("[]");
return false;
}
@Override
public boolean visit(JAssertStatement x, Context ctx) {
print(CHARS_ASSERT);
accept(x.getTestExpr());
if (x.getArg() != null) {
print(" : ");
accept(x.getArg());
}
return false;
}
@Override
public boolean visit(JBinaryOperation x, Context ctx) {
// TODO(later): associativity
JExpression arg1 = x.getLhs();
parenPush(x, arg1);
accept(arg1);
parenPop(x, arg1);
space();
print(x.getOp().getSymbol());
space();
JExpression arg2 = x.getRhs();
parenPush(x, arg2);
accept(arg2);
parenPop(x, arg2);
return false;
}
@Override
public boolean visit(JBlock x, Context ctx) {
openBlock();
for (int i = 0; i < x.getStatements().size(); ++i) {
JStatement statement = x.getStatements().get(i);
needSemi = true;
accept(statement);
if (needSemi) {
semi();
}
newline();
}
closeBlock();
needSemi = false;
return false;
}
@Override
public boolean visit(JBooleanLiteral x, Context ctx) {
printBooleanLiteral(x.getValue());
return false;
}
@Override
public boolean visit(JBreakStatement x, Context ctx) {
print(CHARS_BREAK);
if (x.getLabel() != null) {
space();
accept(x.getLabel());
}
return false;
}
@Override
public boolean visit(JCaseStatement x, Context ctx) {
if (x.getExpr() != null) {
print(CHARS_CASE);
accept(x.getExpr());
} else {
print(CHARS_DEFAULT);
}
print(':');
space();
needSemi = false;
return false;
}
@Override
public boolean visit(JCastOperation x, Context ctx) {
lparen();
printType(x);
rparen();
space();
JExpression expr = x.getExpr();
parenPush(x, expr);
accept(expr);
parenPop(x, expr);
return false;
}
@Override
public boolean visit(JCastMap x, Context ctx) {
print('[');
visitCollectionWithCommas(x.getCanCastToTypes().iterator());
print(']');
return false;
}
@Override
public boolean visit(JCharLiteral x, Context ctx) {
printCharLiteral(x.getValue());
return false;
}
@Override
public boolean visit(JClassLiteral x, Context ctx) {
printTypeName(x.getRefType());
print(CHARS_DOTCLASS);
return false;
}
@Override
public boolean visit(JType x, Context ctx) {
print(x.getDescription());
return false;
}
@Override
public boolean visit(JDeclaredType x, Context ctx) {
visit((JType) x, ctx);
print(" (");
printAbstractFlag(x);
printFinalFlag(x);
if (x.getSuperClass() != null) {
print(CHARS_EXTENDS);
printTypeName(x.getSuperClass());
}
if (x.getImplements().size() > 0) {
space();
print(CHARS_IMPLEMENTS);
for (int i = 0, c = x.getImplements().size(); i < c; ++i) {
if (i > 0) {
print(CHARS_COMMA);
}
printTypeName(x.getImplements().get(i));
}
}
print(")");
return false;
}
@Override
public boolean visit(JConditional x, Context ctx) {
// TODO(later): associativity
JExpression ifTest = x.getIfTest();
parenPush(x, ifTest);
accept(ifTest);
parenPop(x, ifTest);
print(" ? ");
JExpression thenExpr = x.getThenExpr();
parenPush(x, thenExpr);
accept(thenExpr);
parenPop(x, thenExpr);
print(" : ");
JExpression elseExpr = x.getElseExpr();
parenPush(x, elseExpr);
accept(elseExpr);
parenPop(x, elseExpr);
return false;
}
@Override
public boolean visit(JConstructor x, Context ctx) {
// Modifiers
if (x.isPrivate()) {
print(CHARS_PRIVATE);
} else {
print(CHARS_PUBLIC);
}
printName(x);
// Parameters
printParameterList(x);
if (x.isAbstract() || !shouldPrintMethodBody()) {
semi();
newlineOpt();
} else {
accept(x.getBody());
}
return false;
}
@Override
public boolean visit(JContinueStatement x, Context ctx) {
print(CHARS_CONTINUE);
if (x.getLabel() != null) {
space();
accept(x.getLabel());
}
return false;
}
@Override
public boolean visit(JDebuggerStatement x, Context ctx) {
print("GWT.debugger()");
return false;
}
@Override
public boolean visit(JDeclarationStatement x, Context ctx) {
if (!suppressType) {
accept(x.getVariableRef().getTarget());
} else {
accept(x.getVariableRef());
}
JExpression initializer = x.getInitializer();
if (initializer != null) {
print(" = ");
accept(initializer);
}
return false;
}
@Override
public boolean visit(JDoStatement x, Context ctx) {
print(CHARS_DO);
needSemi = true;
if (x.getBody() != null) {
nestedStatementPush(x.getBody());
accept(x.getBody());
nestedStatementPop(x.getBody());
}
if (needSemi) {
semi();
newline();
} else {
space();
needSemi = true;
}
print(CHARS_WHILE);
lparen();
accept(x.getTestExpr());
rparen();
return false;
}
@Override
public boolean visit(JDoubleLiteral x, Context ctx) {
printDoubleLiteral(x.getValue());
return false;
}
@Override
public boolean visit(JExpressionStatement x, Context ctx) {
accept(x.getExpr());
return false;
}
@Override
public boolean visit(JField x, Context ctx) {
printFinalFlag(x);
printStaticFlag(x);
printType(x);
space();
printName(x);
return false;
}
@Override
public boolean visit(JFieldRef x, Context ctx) {
JExpression instance = x.getInstance();
if (instance != null) {
parenPush(x, instance);
accept(instance);
parenPop(x, instance);
} else {
printTypeName(x.getField().getEnclosingType());
}
print('.');
printName(x.getField());
return false;
}
@Override
public boolean visit(JFloatLiteral x, Context ctx) {
printDoubleLiteral(x.getValue());
return false;
}
@Override
public boolean visit(JForStatement x, Context ctx) {
print(CHARS_FOR);
lparen();
Iterator iter = x.getInitializers().iterator();
if (iter.hasNext()) {
JStatement stmt = iter.next();
accept(stmt);
}
suppressType = true;
while (iter.hasNext()) {
print(CHARS_COMMA);
JStatement stmt = iter.next();
accept(stmt);
}
suppressType = false;
semi();
space();
if (x.getCondition() != null) {
accept(x.getCondition());
}
semi();
space();
if (x.getIncrements() != null) {
accept(x.getIncrements());
}
rparen();
if (x.getBody() != null) {
nestedStatementPush(x.getBody());
accept(x.getBody());
nestedStatementPop(x.getBody());
}
return false;
}
@Override
public boolean visit(JIfStatement x, Context ctx) {
print(CHARS_IF);
lparen();
accept(x.getIfExpr());
rparen();
if (x.getThenStmt() != null) {
nestedStatementPush(x.getThenStmt());
accept(x.getThenStmt());
nestedStatementPop(x.getThenStmt());
}
if (x.getElseStmt() != null) {
if (needSemi) {
semi();
newline();
} else {
space();
needSemi = true;
}
print(CHARS_ELSE);
boolean elseIf = x.getElseStmt() instanceof JIfStatement;
if (!elseIf) {
nestedStatementPush(x.getElseStmt());
} else {
space();
}
accept(x.getElseStmt());
if (!elseIf) {
nestedStatementPop(x.getElseStmt());
}
}
return false;
}
@Override
public boolean visit(JInstanceOf x, Context ctx) {
JExpression expr = x.getExpr();
parenPush(x, expr);
accept(expr);
parenPop(x, expr);
print(CHARS_INSTANCEOF);
printTypeName(x.getTestType());
return false;
}
@Override
public boolean visit(JIntLiteral x, Context ctx) {
print(Integer.toString(x.getValue()));
return false;
}
@Override
public boolean visit(JLabel x, Context ctx) {
printName(x);
return false;
}
@Override
public boolean visit(JLabeledStatement x, Context ctx) {
accept(x.getLabel());
print(" : ");
accept(x.getBody());
return false;
}
@Override
public boolean visit(JLocal x, Context ctx) {
printFinalFlag(x);
printType(x);
space();
printName(x);
return false;
}
@Override
public boolean visit(JLocalRef x, Context ctx) {
printName(x.getLocal());
return false;
}
@Override
public boolean visit(JLongLiteral x, Context ctx) {
printLongLiteral(x.getValue());
return false;
}
@Override
public boolean visit(JMethod x, Context ctx) {
if (!shouldPrintMethodBody()) {
print(x.getEnclosingType().getName() + "." + x.getSignature());
return false;
}
printMethodHeader(x);
if (x.isAbstract()) {
semi();
newlineOpt();
} else {
accept(x.getBody());
}
return false;
}
@Override
public boolean visit(JMethodBody x, Context ctx) {
accept(x.getBlock());
return false;
}
@Override
public boolean visit(JMethodCall x, Context ctx) {
JExpression instance = x.getInstance();
JMethod target = x.getTarget();
if (instance == null) {
// Static call.
printTypeName(target.getEnclosingType());
print('.');
printName(target);
} else {
// Instance call.
parenPush(x, instance);
accept(instance);
parenPop(x, instance);
print('.');
if (x.isStaticDispatchOnly()) {
printTypeName(target.getEnclosingType());
print('.');
}
printName(target);
}
lparen();
visitCollectionWithCommas(x.getArgs().iterator());
rparen();
return false;
}
@Override
public boolean visit(JMultiExpression x, Context ctx) {
lparen();
visitCollectionWithCommas(x.getExpressions().iterator());
rparen();
return false;
}
@Override
public boolean visit(JNameOf x, Context ctx) {
print(CHARS_SLASHSTAR);
print(CHARS_NAMEOF);
print(CHARS_STARSLASH);
printStringLiteral(x.getNode().getName());
return false;
}
@Override
public boolean visit(JRuntimeTypeReference x, Context ctx) {
print(CHARS_SLASHSTAR);
print(CHARS_RUNTIMETYPEREFERENCE);
print(CHARS_STARSLASH);
printStringLiteral(x.getReferredType().getName());
return false;
}
@Override
public boolean visit(JNewArray x, Context ctx) {
print(CHARS_NEW);
printTypeName(x.getArrayType());
if (x.getInitializers() != null) {
print(" {");
visitCollectionWithCommas(x.getInitializers().iterator());
print('}');
} else {
for (int i = 0; i < x.getDimensionExpressions().size(); ++i) {
JExpression expr = x.getDimensionExpressions().get(i);
print('[');
accept(expr);
print(']');
}
}
return false;
}
@Override
public boolean visit(JNewInstance x, Context ctx) {
print(CHARS_NEW);
JConstructor target = x.getTarget();
printName(target);
lparen();
visitCollectionWithCommas(x.getArgs().iterator());
rparen();
return false;
}
@Override
public boolean visit(JNullLiteral x, Context ctx) {
print(CHARS_NULL);
return false;
}
@Override
public boolean visit(JParameter x, Context ctx) {
printType(x);
space();
printName(x);
return false;
}
@Override
public boolean visit(JParameterRef x, Context ctx) {
printName(x.getTarget());
return false;
}
@Override
public boolean visit(JPermutationDependentValue x, Context ctx) {
if (x.isTypeRebind()) {
print("GWT.create(");
print(x.getRequestedValue());
print(".class)");
} else {
assert x.isProperty();
print("GWT.getProperty(");
print("\"");
print(x.getRequestedValue());
print("\"");
if (x.getResultValues().get(0) != null) {
print(",");
print("\"");
print(x.getResultValues().get(0));
print("\"");
}
print(")");
}
return false;
}
@Override
public boolean visit(JPostfixOperation x, Context ctx) {
// TODO(later): associativity
JExpression arg = x.getArg();
parenPush(x, arg);
accept(arg);
parenPop(x, arg);
print(x.getOp().getSymbol());
return false;
}
@Override
public boolean visit(JPrefixOperation x, Context ctx) {
// TODO(later): associativity
print(x.getOp().getSymbol());
JExpression arg = x.getArg();
parenPush(x, arg);
accept(arg);
parenPop(x, arg);
return false;
}
@Override
public boolean visit(JPrimitiveType x, Context ctx) {
printTypeName(x);
return false;
}
@Override
public boolean visit(JProgram x, Context ctx) {
print("");
return false;
}
@Override
public boolean visit(JReturnStatement x, Context ctx) {
print(CHARS_RETURN);
if (x.getExpr() != null) {
space();
accept(x.getExpr());
}
return false;
}
@Override
public boolean visit(JsniFieldRef x, Context ctx) {
return visit(x.getField(), ctx);
}
@Override
public boolean visit(final JsniMethodBody x, Context ctx) {
print(" /*-");
new JsSourceGenerationVisitor(this) {
{
printJsBlock(x.getFunc().getBody(), false, false);
}
};
print("-*/");
semi();
return false;
}
@Override
public boolean visit(JsniMethodRef x, Context ctx) {
printMethodHeader(x.getTarget());
return false;
}
@Override
public boolean visit(JsonArray x, Context ctx) {
print('[');
visitCollectionWithCommas(x.getExpressions().iterator());
print(']');
return false;
}
@Override
public boolean visit(JStringLiteral x, Context ctx) {
printStringLiteral(x.getValue());
return false;
}
@Override
public boolean visit(JSwitchStatement x, Context ctx) {
print(CHARS_SWITCH);
lparen();
accept(x.getExpr());
rparen();
space();
nestedStatementPush(x.getBody());
accept(x.getBody());
nestedStatementPop(x.getBody());
return false;
}
@Override
public boolean visit(JThisRef x, Context ctx) {
print(CHARS_THIS);
return false;
}
@Override
public boolean visit(JThrowStatement x, Context ctx) {
print(CHARS_THROW);
if (x.getExpr() != null) {
space();
accept(x.getExpr());
}
return false;
}
@Override
public boolean visit(JTryStatement x, Context ctx) {
print(CHARS_TRY);
accept(x.getTryBlock());
for (JTryStatement.CatchClause clause : x.getCatchClauses()) {
print(CHARS_CATCH);
lparen();
Iterator it = clause.getTypes().iterator();
printTypeName(it.next());
while (it.hasNext()) {
print(CHARS_PIPE);
printTypeName(it.next());
}
space();
printName(clause.getArg().getTarget());
rparen();
space();
accept(clause.getBlock());
}
if (x.getFinallyBlock() != null) {
print(CHARS_FINALLY);
accept(x.getFinallyBlock());
}
return false;
}
@Override
public boolean visit(JWhileStatement x, Context ctx) {
print(CHARS_WHILE);
lparen();
accept(x.getTestExpr());
rparen();
if (x.getBody() != null) {
nestedStatementPush(x.getBody());
accept(x.getBody());
nestedStatementPop(x.getBody());
}
return false;
}
protected void closeBlock() {
indentOut();
print('}');
}
protected void lparen() {
print('(');
}
protected boolean nestedStatementPop(JStatement statement) {
boolean pop = !(statement instanceof JBlock);
if (pop) {
indentOut();
}
return pop;
}
protected boolean nestedStatementPush(JStatement statement) {
boolean push = !(statement instanceof JBlock);
if (push) {
indentIn();
newline();
} else {
space();
}
return push;
}
protected void openBlock() {
print('{');
indentIn();
newline();
}
protected boolean parenPop(int parentPrec, JExpression child) {
int childPrec = JavaPrecedenceVisitor.exec(child);
if (parentPrec < childPrec) {
rparen();
return true;
} else {
return false;
}
}
protected boolean parenPop(JExpression parent, JExpression child) {
return parenPop(JavaPrecedenceVisitor.exec(parent), child);
}
protected boolean parenPush(int parentPrec, JExpression child) {
int childPrec = JavaPrecedenceVisitor.exec(child);
if (parentPrec < childPrec) {
lparen();
return true;
} else {
return false;
}
}
protected boolean parenPush(JExpression parent, JExpression child) {
return parenPush(JavaPrecedenceVisitor.exec(parent), child);
}
protected void printAbstractFlag(CanBeAbstract x) {
if (x.isAbstract()) {
print(CHARS_ABSTRACT);
}
}
protected void printBooleanLiteral(boolean value) {
print(value ? CHARS_TRUE : CHARS_FALSE);
}
protected void printChar(char c) {
switch (c) {
case '\b':
print("\\b");
break;
case '\t':
print("\\t");
break;
case '\n':
print("\\n");
break;
case '\f':
print("\\f");
break;
case '\r':
print("\\r");
break;
case '\"':
print("\\\"");
break;
case '\'':
print("\\'");
break;
case '\\':
print("\\\\");
break;
default:
if (Character.isISOControl(c)) {
print("\\u");
if (c < 0x1000) {
print('0');
}
if (c < 0x100) {
print('0');
}
if (c < 0x10) {
print('0');
}
print(Integer.toHexString(c));
} else {
print(c);
}
}
}
protected void printCharLiteral(char value) {
print('\'');
printChar(value);
print('\'');
}
protected void printDoubleLiteral(double value) {
print(Double.toString(value));
}
protected void printFinalFlag(CanBeFinal x) {
if (x.isFinal()) {
print(CHARS_FINAL);
}
}
protected void printLongLiteral(long value) {
print(Long.toString(value));
print('L');
}
protected void printMethodHeader(JMethod x) {
// Modifiers
switch (x.getAccess()) {
case PUBLIC:
print(CHARS_PUBLIC);
break;
case PROTECTED:
print(CHARS_PROTECTED);
break;
case PRIVATE:
print(CHARS_PRIVATE);
break;
case DEFAULT:
break;
}
printStaticFlag(x);
printAbstractFlag(x);
printNativeFlag(x);
printFinalFlag(x);
printType(x);
space();
printName(x);
// Parameters
printParameterList(x);
}
protected void printName(HasName x) {
print(x.getName());
}
protected void printNativeFlag(JMethod x) {
if (x.isJsniMethod()) {
print(CHARS_NATIVE);
}
}
protected void printParameterList(JMethod x) {
lparen();
visitCollectionWithCommas(x.getParams().iterator());
rparen();
}
protected void printStaticFlag(CanBeStatic x) {
if (x.isStatic()) {
print(CHARS_STATIC);
}
}
protected void printStringLiteral(String string) {
char[] s = string.toCharArray();
print('\"');
for (char value : s) {
printChar(value);
}
print('\"');
}
protected void printType(HasType hasType) {
printTypeName(hasType.getType());
}
protected void printTypeName(JType type) {
if (type instanceof JReferenceType) {
print(type.getShortName());
} else {
print(type.getName());
}
}
protected void rparen() {
print(')');
}
protected void semi() {
print(';');
}
protected boolean shouldPrintMethodBody() {
return false;
}
protected void space() {
print(' ');
}
protected void visitCollectionWithCommas(Iterator iter) {
visitCollectionWith(CHARS_COMMA, iter);
}
protected void visitCollectionWith(char[] ch, Iterator iter) {
if (iter.hasNext()) {
accept(iter.next());
}
while (iter.hasNext()) {
print(ch);
accept(iter.next());
}
}
}
