cerxes/babel
3
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

add deoptValue method to Binding that ignores all subsequent setValue calls

Browse Source
This commit is contained in:
Sebastian McKenzie 2015-06-05 07:52:57 +01:00
parent 4c2936773a
commit 58059a2c48
2 changed files with 37 additions and 15 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

15
src/babel/traversal/scope/binding.js
View File

@ -14,11 +14,21 @@ export default class Binding {
this.clearValue();
}
/**
* Description
*/
deoptValue(value) {
this.clearValue();
this.deoptValue = true;
}
/**
* Description
*/
setValue(value) {
if (this.deoptValue) return;
this.hasValue = true;
this.value = value;
}
@ -28,8 +38,9 @@ export default class Binding {
*/
clearValue() {
this.hasValue = false;
this.value = null;
this.deoptValue = false;
this.hasValue = false;
this.value = null;
}
/**

37
src/babel/traversal/scope/index.js
View File

@ -30,44 +30,55 @@ var collectorVisitor = {
scope.getFunctionParent().registerDeclaration(this);
},
ReferencedIdentifier(node, parent, scope) {
var bindingInfo = scope.getBinding(node.name);
ReferencedIdentifier(node) {
var bindingInfo = this.scope.getBinding(node.name);
if (bindingInfo) {
bindingInfo.reference();
} else {
scope.getProgramParent().addGlobal(node);
this.scope.getProgramParent().addGlobal(node);
}
},
ForXStatement(node, parent, scope) {
ForXStatement() {
var left = this.get("left");
if (left.isPattern() || left.isIdentifier()) {
scope.registerConstantViolation(left);
this.scope.registerConstantViolation(left);
}
},
ExportDeclaration: {
exit(node, parent, scope) {
exit(node) {
var declar = node.declaration;
if (t.isClassDeclaration(declar) || t.isFunctionDeclaration(declar)) {
scope.getBinding(declar.id.name).reference();
this.scope.getBinding(declar.id.name).reference();
} else if (t.isVariableDeclaration(declar)) {
for (var decl of (declar.declarations: Array)) {
var ids = t.getBindingIdentifiers(decl);
for (var name in ids) {
scope.getBinding(name).reference();
this.scope.getBinding(name).reference();
}
}
}
}
},
LabeledStatement(node, parent, scope) {
scope.getProgramParent().addGlobal(node);
LabeledStatement(node) {
this.scope.getProgramParent().addGlobal(node);
},
AssignmentExpression(node, parent, scope) {
scope.registerConstantViolation(this.get("left"), this.get("right"));
AssignmentExpression() {
// register undeclared bindings as globals
var ids = this.getBindingIdentifiers();
var programParent;
for (var name in ids) {
if (this.scope.getBinding(name)) continue;
programParent = programParent || this.scope.getProgramParent();
programParent.addGlobal(ids[name]);
}
// register as constant violation
this.scope.registerConstantViolation(this.get("left"), this.get("right"));
},
UpdateExpression(node, parent, scope) {
@ -95,7 +106,7 @@ var collectorVisitor = {
scope.getBlockParent().registerDeclaration(path);
}
}
},
}
};
var renameVisitor = {