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Implement harmony generators and yield

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Uses #716's implementation and adds tests.

Fixes #716.
This commit is contained in:
Darío Javier Cravero
2016-02-04 22:19:48 +01:00
committed by Richard van Velzen
parent 634f231b78
commit 91cdb93e57
5 changed files with 60 additions and 2 deletions
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18
lib/output.js
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@@ -226,6 +226,10 @@ function OutputStream(options) {
OUTPUT += str;
};
var star = function(){
print("*");
}
var space = options.beautify ? function() {
print(" ");
} : function() {
@@ -343,6 +347,7 @@ function OutputStream(options) {
should_break : function() { return options.width && this.current_width() >= options.width },
newline : newline,
print : print,
star : star,
space : space,
comma : comma,
colon : colon,
@@ -783,6 +788,9 @@ function OutputStream(options) {
var self = this;
if (!nokeyword) {
output.print("function");
if (this.is_generator) {
output.star();
}
if (self.name) {
output.space();
}
@@ -1203,8 +1211,13 @@ function OutputStream(options) {
output.print(self.operator);
});
DEFPRINT(AST_Binary, function(self, output){
var isYield = (self.left.operator == "yield" || self.left.operator === "yield*");
var op = self.operator;
isYield && output.print("(");
self.left.print(output);
isYield && output.print(")");
if (op[0] == ">" /* ">>" ">>>" ">" ">=" */
&& self.left instanceof AST_UnaryPostfix
&& self.left.operator == "--") {
@@ -1214,7 +1227,12 @@ function OutputStream(options) {
// the space is optional depending on "beautify"
output.space();
}
isYield = (self.right.operator == "yield" || self.right.operator === "yield*");
isYield && output.print("(");
output.print(op);
isYield && output.print(")");
if ((op == "<" || op == "<<")
&& self.right instanceof AST_UnaryPrefix
&& self.right.operator == "!"