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Bug 1152304 - Add displaying of block notes to dis() in the JS shell. (r=jimb)

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This commit is contained in:
Shu-yu Guo 2015-04-15 21:55:21 -07:00
parent 0e4f326901
commit f8e6b5e10b
1 changed files with 26 additions and 0 deletions
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26
js/src/shell/js.cpp
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@ -2202,6 +2202,30 @@ TryNotes(JSContext* cx, HandleScript script, Sprinter* sp)
return true;
}
static bool
BlockNotes(JSContext* cx, HandleScript script, Sprinter* sp)
{
if (!script->hasBlockScopes())
return true;
Sprint(sp, "\nBlock table:\n index parent start end\n");
BlockScopeArray* scopes = script->blockScopes();
for (uint32_t i = 0; i < scopes->length; i++) {
const BlockScopeNote* note = &scopes->vector[i];
if (note->index == BlockScopeNote::NoBlockScopeIndex)
Sprint(sp, "%8s ", "(none)");
else
Sprint(sp, "%8u ", note->index);
if (note->parent == BlockScopeNote::NoBlockScopeIndex)
Sprint(sp, "%8s ", "(none)");
else
Sprint(sp, "%8u ", note->parent);
Sprint(sp, "%8u %8u\n", note->start, note->start + note->length);
}
return true;
}
static bool
DisassembleScript(JSContext* cx, HandleScript script, HandleFunction fun, bool lines,
bool recursive, Sprinter* sp)
@ -2229,6 +2253,7 @@ DisassembleScript(JSContext* cx, HandleScript script, HandleFunction fun, bool l
return false;
SrcNotes(cx, script, sp);
TryNotes(cx, script, sp);
BlockNotes(cx, script, sp);
if (recursive && script->hasObjects()) {
ObjectArray* objects = script->objects();
@ -2299,6 +2324,7 @@ DisassembleToSprinter(JSContext* cx, unsigned argc, jsval* vp, Sprinter* sprinte
return false;
SrcNotes(cx, script, sprinter);
TryNotes(cx, script, sprinter);
BlockNotes(cx, script, sprinter);
}
} else {
for (unsigned i = 0; i < p.argc; i++) {