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// getLineOffsets works with extended instructions, such as JSOP_GOTOX.
var g = newGlobal();
g.line0 = null;
var dbg = Debugger(g);
var where;
dbg.onDebuggerStatement = function (frame) {
var s = frame.script;
var offs;
var lineno = g.line0 + where;
offs = s.getLineOffsets(lineno);
for (var i = 0; i < offs.length; i++) {
assertEq(s.getOffsetLocation(offs[i]).lineNumber, lineno);
s.setBreakpoint(offs[i], {hit: function (frame) { g.log += 'B'; }});
}
g.log += 'A';
};
function test(s) {
assertEq(s.charAt(s.length - 1) !== '\n', true);
var count = s.split(/\n/).length; // number of lines in s
g.i = 0;
g.log = '';
where = 1 + count;
g.eval("line0 = Error().lineNumber;\n" +
"debugger;\n" + // line0 + 1
s + // line0 + 2 ... line0 + where
" log += 'C';\n");
assertEq(g.log, 'ABC');
}
function repeat(s) {
return Array((1 << 14) + 1).join(s); // 16K copies of s
}
var long_expr = "i" + repeat(" + i");
var long_throw_stmt = "throw " + long_expr + ";\n";
// long break (JSOP_GOTOX)
test("for (;;) {\n" +
" if (i === 0)\n" +
" break;\n" +
" " + long_throw_stmt +
"}");
// long continue (JSOP_GOTOX)
test("do {\n" +
" if (i === 0)\n" +
" continue;\n" +
" " + long_throw_stmt +
"} while (i !== 0);");
// long if consequent (JSOP_IFEQX)
test("if (i === 2) {\n" +
" " + long_throw_stmt +
"}");
// long catch-block with finally (JSOP_GOSUBX)
test("try {\n" +
" i = 0;\n" +
"} catch (exc) {\n" +
" throw " + long_expr + ";\n" +
"} finally {\n" +
" i = 1;\n" +
"}");
// long case (JSOP_TABLESWITCHX)
test("switch (i) {\n" +
" default:\n" +
" case 1: " + long_throw_stmt +
" case 0: i++; }");
test("switch (i) {\n" +
" case 1: case 2: case 3: " + long_throw_stmt +
" default: i++; }");
// long case (JSOP_LOOKUPSWITCHX)
test("switch ('' + i) {\n" +
" default:\n" +
" case '1': " + long_throw_stmt +
" case '0': i++; }");
test("switch (i) {\n" +
" case '1': case '2': case '3': " + long_throw_stmt +
" default: i++; }");
// long case or case-expression (JSOP_CASEX)
test("switch (i) {\n" +
" case i + 1 - i:\n" +
" default:\n" +
" " + long_throw_stmt +
" case i + i:\n" +
" i++; break; }");
// long case when JSOP_CASE is used (JSOP_DEFAULTX)
test("switch (i) {\n" +
" case i + 1 - i:\n" +
" " + long_throw_stmt +
" default:\n" +
" i++; break; }");
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