shithub: libmujs

Info  •  Files  •  Log  •  Branches

Track strictness during runtime based on 'use strict' pragma.

--- a/jsi.h

+++ b/jsi.h

@@ -131,6 +131,7 @@

 	int envtop;

 	int tracetop;

 	int top, bot;

+	int strict;

 	js_Instruction *pc;

 };

--- a/jsrun.c

+++ b/jsrun.c

@@ -1167,6 +1167,7 @@

 	J->trybuf[J->trytop].tracetop = J->tracetop;

 	J->trybuf[J->trytop].top = J->top;

 	J->trybuf[J->trytop].bot = J->bot;

+	J->trybuf[J->trytop].strict = J->strict;

 	J->trybuf[J->trytop].pc = pc;

 	return J->trybuf[J->trytop++].buf;

 }

@@ -1180,6 +1181,7 @@

 	J->trybuf[J->trytop].tracetop = J->tracetop;

 	J->trybuf[J->trytop].top = J->top;

 	J->trybuf[J->trytop].bot = J->bot;

+	J->trybuf[J->trytop].strict = J->strict;

 	J->trybuf[J->trytop].pc = NULL;

 	return J->trybuf[J->trytop++].buf;

 }

@@ -1201,6 +1203,7 @@

 		J->tracetop = J->trybuf[J->trytop].tracetop;

 		J->top = J->trybuf[J->trytop].top;

 		J->bot = J->trybuf[J->trytop].bot;

+		J->strict = J->trybuf[J->trytop].strict;

 		js_pushvalue(J, v);

 		longjmp(J->trybuf[J->trytop].buf, 1);

 	}

@@ -1271,6 +1274,7 @@

 	js_Instruction *pc = F->code;

 	enum js_OpCode opcode;

 	int offset;

+	int savestrict;

 	const char *str;

 	js_Object *obj;

@@ -1279,6 +1283,9 @@

 	int ix, iy, okay;

 	int b;

+	savestrict = J->strict;

+	J->strict = F->strict;

+

 	while (1) {

 		if (J->gccounter > JS_GCLIMIT) {

 			J->gccounter = 0;

@@ -1723,6 +1730,7 @@

 			break;

 		case OP_RETURN:

+			J->strict = savestrict;

 			return;

 		case OP_LINE: