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Fix predicate attachment to match flow parser (#428)

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This commit is contained in:
Brian Ng
2017-04-04 08:48:50 -05:00
committed by Daniel Tschinder
parent cbf4203237
commit bdfa92464b
51 changed files with 181 additions and 206 deletions
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31
src/plugins/flow.js
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@@ -40,7 +40,7 @@ pp.flowParsePredicate = function() {
this.raise(moduloPos, "Spaces between ´%´ and ´checks´ are not allowed here.");
}
if (this.eat(tt.parenL)) {
node.expression = this.parseExpression();
node.value = this.parseExpression();
this.expect(tt.parenR);
return this.finishNode(node, "DeclaredPredicate");
} else {
@@ -92,10 +92,10 @@ pp.flowParseDeclareFunction = function (node) {
typeNode.params = tmp.params;
typeNode.rest = tmp.rest;
this.expect(tt.parenR);
let predicate = null;
[typeNode.returnType, predicate] = this.flowParseTypeAndPredicateInitialiser();
[typeNode.returnType, node.predicate] = this.flowParseTypeAndPredicateInitialiser();
typeContainer.typeAnnotation = this.finishNode(typeNode, "FunctionTypeAnnotation");
typeContainer.predicate = predicate;
id.typeAnnotation = this.finishNode(typeContainer, "TypeAnnotation");
this.finishNode(id, id.type);
@@ -836,12 +836,6 @@ pp.flowParseTypeAnnotation = function () {
return this.finishNode(node, "TypeAnnotation");
};
pp.flowParseTypeAndPredicateAnnotation = function () {
const node = this.startNode();
[node.typeAnnotation, node.predicate] = this.flowParseTypeAndPredicateInitialiser();
return this.finishNode(node, "TypeAnnotation");
};
pp.flowParseTypeAnnotatableIdentifier = function () {
const ident = this.flowParseRestrictedIdentifier();
if (this.match(tt.colon)) {
@@ -884,7 +878,12 @@ export default function (instance) {
if (this.match(tt.colon) && !allowExpression) {
// if allowExpression is true then we're parsing an arrow function and if
// there's a return type then it's been handled elsewhere
node.returnType = this.flowParseTypeAndPredicateAnnotation();
const typeNode = this.startNode();
[typeNode.typeAnnotation, node.predicate] = this.flowParseTypeAndPredicateInitialiser();
node.returnType = typeNode.typeAnnotation
? this.finishNode(typeNode, "TypeAnnotation")
: null;
}
return inner.call(this, node, allowExpression);
@@ -1437,13 +1436,19 @@ export default function (instance) {
try {
const oldNoAnonFunctionType = this.state.noAnonFunctionType;
this.state.noAnonFunctionType = true;
const returnType = this.flowParseTypeAndPredicateAnnotation();
const typeNode = this.startNode();
[typeNode.typeAnnotation, node.predicate] = this.flowParseTypeAndPredicateInitialiser();
this.state.noAnonFunctionType = oldNoAnonFunctionType;
if (this.canInsertSemicolon()) this.unexpected();
if (!this.match(tt.arrow)) this.unexpected();
// assign after it is clear it is an arrow
node.returnType = returnType;
node.returnType = typeNode.typeAnnotation
? this.finishNode(typeNode, "TypeAnnotation")
: null;
} catch (err) {
if (err instanceof SyntaxError) {
this.state = state;