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Rework has_directive

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It's now available during tree walking, i.e. walker.has_directive("use
asm"), rather than as part of the scope.  It's thus no longer necessary
to call `figure_out_scope` before codegen.  Added special bits in the
code generator to overcome the fact that it doesn't inherit from
TreeWalker.

Fix #861
This commit is contained in:
Mihai Bazon
2015-11-11 22:15:25 +02:00
parent 3c4346728e
commit 7691bebea5
8 changed files with 60 additions and 59 deletions
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16
lib/output.js
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@@ -382,8 +382,13 @@ function OutputStream(options) {
nodetype.DEFMETHOD("_codegen", generator);
};
var use_asm = false;
AST_Node.DEFMETHOD("print", function(stream, force_parens){
var self = this, generator = self._codegen;
var self = this, generator = self._codegen, prev_use_asm = use_asm;
if (self instanceof AST_Directive && self.value == "use asm") {
use_asm = true;
}
function doit() {
self.add_comments(stream);
self.add_source_map(stream);
@@ -396,6 +401,9 @@ function OutputStream(options) {
doit();
}
stream.pop_node();
if (self instanceof AST_Lambda) {
use_asm = prev_use_asm;
}
});
AST_Node.DEFMETHOD("print_to_string", function(options){
@@ -1170,10 +1178,8 @@ function OutputStream(options) {
output.print_string(self.getValue(), self.quote);
});
DEFPRINT(AST_Number, function(self, output){
if (self.literal !== undefined
&& +self.literal === self.value /* paranoid check */
&& self.scope && self.scope.has_directive('use asm')) {
output.print(self.literal);
if (use_asm) {
output.print(self.start.literal);
} else {
output.print(make_num(self.getValue()));
}