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Parenthesized expressions (#8025)

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* Add parser createParenthesizedExpressions option  …

When set to `true` we create `ParenthesizedExpression` nodes instead of
setting `extra.parenthesized`.

* Also update babel-parser.d.ts
This commit is contained in:
Erik Arvidsson
2019-02-22 23:45:25 -08:00
committed by Justin Ridgewell
parent 417e72ebfd
commit dd8b700a2c
43 changed files with 1186 additions and 65 deletions
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17
packages/babel-parser/src/parser/statement.js
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@@ -426,6 +426,13 @@ export default class StatementParser extends ExpressionParser {
return this.finishNode(node, "DebuggerStatement");
}
parseHeaderExpression(): N.Expression {
this.expect(tt.parenL);
const val = this.parseExpression();
this.expect(tt.parenR);
return val;
}
parseDoStatement(node: N.DoWhileStatement): N.DoWhileStatement {
this.next();
this.state.labels.push(loopLabel);
@@ -442,7 +449,7 @@ export default class StatementParser extends ExpressionParser {
this.state.labels.pop();
this.expect(tt._while);
node.test = this.parseParenExpression();
node.test = this.parseHeaderExpression();
this.eat(tt.semi);
return this.finishNode(node, "DoWhileStatement");
}
@@ -531,7 +538,7 @@ export default class StatementParser extends ExpressionParser {
parseIfStatement(node: N.IfStatement): N.IfStatement {
this.next();
node.test = this.parseParenExpression();
node.test = this.parseHeaderExpression();
node.consequent = this.parseStatement("if");
node.alternate = this.eat(tt._else) ? this.parseStatement("if") : null;
return this.finishNode(node, "IfStatement");
@@ -560,7 +567,7 @@ export default class StatementParser extends ExpressionParser {
parseSwitchStatement(node: N.SwitchStatement): N.SwitchStatement {
this.next();
node.discriminant = this.parseParenExpression();
node.discriminant = this.parseHeaderExpression();
const cases = (node.cases = []);
this.expect(tt.braceL);
this.state.labels.push(switchLabel);
@@ -669,7 +676,7 @@ export default class StatementParser extends ExpressionParser {
parseWhileStatement(node: N.WhileStatement): N.WhileStatement {
this.next();
node.test = this.parseParenExpression();
node.test = this.parseHeaderExpression();
this.state.labels.push(loopLabel);
node.body =
@@ -691,7 +698,7 @@ export default class StatementParser extends ExpressionParser {
this.raise(this.state.start, "'with' in strict mode");
}
this.next();
node.object = this.parseParenExpression();
node.object = this.parseHeaderExpression();
node.body =
// For the smartPipelines plugin: