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Loose: class support.

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This commit is contained in:
Ingvar Stepanyan 2014-10-27 01:36:16 +02:00 committed by Marijn Haverbeke
parent c6b6ef389e
commit ede10a079c
1 changed files with 47 additions and 11 deletions
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58
acorn_loose.js
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@ -443,6 +443,9 @@
next();
return finishNode(node, "EmptyStatement");
case tt._class:
return parseObj(true, true);
default:
var expr = parseExpression();
if (isDummy(expr)) {
@ -708,6 +711,9 @@
case tt.braceL:
return parseObj();
case tt._class:
return parseObj(true);
case tt._function:
var node = startNode();
next();
@ -735,46 +741,76 @@
return finishNode(node, "NewExpression");
}
function parseObj() {
function parseObj(isClass, isStatement) {
var node = startNode();
node.properties = [];
if (isClass) {
next();
if (token.type === tt.name) node.id = parseIdent();
else if (isStatement) node.id = dummyIdent();
node.superClass = eat(tt._extends) ? parseExpression() : null;
node.body = startNode();
node.body.body = [];
} else {
node.properties = [];
}
pushCx();
var indent = curIndent + 1, line = curLineStart;
next();
eat(tt.braceL);
if (curIndent + 1 < indent) { indent = curIndent; line = curLineStart; }
while (!closes(tt.braceR, indent, line)) {
var prop = startNode(), isGenerator;
if (options.ecmaVersion >= 6) {
prop.method = false;
prop.shorthand = false;
if (isClass) {
if (prop['static'] = (token.type === tt.name && token.value === "static")) next();
} else {
prop.method = false;
prop.shorthand = false;
}
isGenerator = eat(tt.star);
}
parsePropertyName(prop);
if (isDummy(prop.key)) { if (isDummy(parseExpression(true))) next(); eat(tt.comma); continue; }
if (eat(tt.colon)) {
if (!isClass && eat(tt.colon)) {
prop.kind = "init";
prop.value = parseExpression(true);
} else if (options.ecmaVersion >= 6 && (token.type === tt.parenL || token.type === tt.braceL)) {
prop.kind = "init";
prop.method = true;
if (isClass) {
prop.kind = "";
} else {
prop.kind = "init";
prop.method = true;
}
prop.value = parseMethod(isGenerator);
} else if (options.ecmaVersion >= 5 && prop.key.type === "Identifier" &&
(prop.key.name === "get" || prop.key.name === "set")) {
prop.kind = prop.key.name;
parsePropertyName(prop);
prop.value = parseMethod(false);
} else if (isClass) {
prop.kind = "";
prop.value = parseMethod(isGenerator);
} else {
prop.kind = "init";
prop.value = options.ecmaVersion >= 6 ? prop.key : dummyIdent();
prop.shorthand = true;
}
node.properties.push(finishNode(prop, "Property"));
eat(tt.comma);
if (isClass) {
node.body.body.push(finishNode(prop, "MethodDefinition"));
semicolon();
} else {
node.properties.push(finishNode(prop, "Property"));
eat(tt.comma);
}
}
popCx();
eat(tt.braceR);
return finishNode(node, "ObjectExpression");
if (isClass) {
finishNode(node.body, "ClassBody");
return finishNode(node, isStatement ? "ClassDeclaration" : "ClassExpression");
} else {
return finishNode(node, "ObjectExpression");
}
}
function parsePropertyName(prop) {