diff options
Diffstat (limited to 'lib/output.js')
| -rw-r--r-- | lib/output.js | 230 |
1 files changed, 101 insertions, 129 deletions
diff --git a/lib/output.js b/lib/output.js index 6d7b0723..1dbc1f6e 100644 --- a/lib/output.js +++ b/lib/output.js @@ -137,7 +137,7 @@ function OutputStream(options) { function make_string(str, quote) { var dq = 0, sq = 0; str = str.replace(/[\\\b\f\n\r\v\t\x22\x27\u2028\u2029\0\ufeff]/g, - function(s, i){ + function(s, i) { switch (s) { case '"': ++dq; return '"'; case "'": ++sq; return "'"; @@ -408,7 +408,7 @@ function OutputStream(options) { var ret; print("{"); newline(); - with_indent(next_indent(), function(){ + with_indent(next_indent(), function() { ret = cont(); }); indent(); @@ -631,7 +631,7 @@ function OutputStream(options) { /* -----[ code generators ]----- */ -(function(){ +(function() { /* -----[ utils ]----- */ @@ -643,7 +643,7 @@ function OutputStream(options) { var active_scope = null; var use_asm = null; - AST_Node.DEFMETHOD("print", function(stream, force_parens){ + AST_Node.DEFMETHOD("print", function(stream, force_parens) { var self = this, generator = self._codegen; if (self instanceof AST_Scope) { active_scope = self; @@ -670,7 +670,7 @@ function OutputStream(options) { }); AST_Node.DEFMETHOD("_print", AST_Node.prototype.print); - AST_Node.DEFMETHOD("print_to_string", function(options){ + AST_Node.DEFMETHOD("print_to_string", function(options) { var s = OutputStream(options); this.print(s); return s.get(); @@ -680,7 +680,7 @@ function OutputStream(options) { function PARENS(nodetype, func) { if (Array.isArray(nodetype)) { - nodetype.forEach(function(nodetype){ + nodetype.forEach(function(nodetype) { PARENS(nodetype, func); }); } else { @@ -692,7 +692,7 @@ function OutputStream(options) { // a function expression needs parens around it when it's provably // the first token to appear in a statement. - PARENS(AST_Function, function(output){ + PARENS(AST_Function, function(output) { if (!output.has_parens() && first_in_statement(output)) { return true; } @@ -714,17 +714,17 @@ function OutputStream(options) { // same goes for an object literal, because otherwise it would be // interpreted as a block of code. - PARENS(AST_Object, function(output){ + PARENS(AST_Object, function(output) { return !output.has_parens() && first_in_statement(output); }); - PARENS(AST_Unary, function(output){ + PARENS(AST_Unary, function(output) { var p = output.parent(); return p instanceof AST_PropAccess && p.expression === this || p instanceof AST_Call && p.expression === this; }); - PARENS(AST_Sequence, function(output){ + PARENS(AST_Sequence, function(output) { var p = output.parent(); return p instanceof AST_Call // (foo, bar)() or foo(1, (2, 3), 4) || p instanceof AST_Unary // !(foo, bar, baz) @@ -738,7 +738,7 @@ function OutputStream(options) { ; }); - PARENS(AST_Binary, function(output){ + PARENS(AST_Binary, function(output) { var p = output.parent(); // (foo && bar)() if (p instanceof AST_Call && p.expression === this) @@ -761,7 +761,7 @@ function OutputStream(options) { } }); - PARENS(AST_PropAccess, function(output){ + PARENS(AST_PropAccess, function(output) { var p = output.parent(); if (p instanceof AST_New && p.expression === this) { // i.e. new (foo.bar().baz) @@ -782,7 +782,7 @@ function OutputStream(options) { } }); - PARENS(AST_Call, function(output){ + PARENS(AST_Call, function(output) { var p = output.parent(), p1; if (p instanceof AST_New && p.expression === this) return true; @@ -796,7 +796,7 @@ function OutputStream(options) { && p1.left === p; }); - PARENS(AST_New, function(output){ + PARENS(AST_New, function(output) { var p = output.parent(); if (!need_constructor_parens(this, output) && (p instanceof AST_PropAccess // (new Date).getTime(), (new Date)["getTime"]() @@ -804,7 +804,7 @@ function OutputStream(options) { return true; }); - PARENS(AST_Number, function(output){ + PARENS(AST_Number, function(output) { var p = output.parent(); if (p instanceof AST_PropAccess && p.expression === this) { var value = this.getValue(); @@ -814,7 +814,7 @@ function OutputStream(options) { } }); - PARENS([ AST_Assign, AST_Conditional ], function(output){ + PARENS([ AST_Assign, AST_Conditional ], function(output) { var p = output.parent(); // !(a = false) → true if (p instanceof AST_Unary) @@ -835,11 +835,11 @@ function OutputStream(options) { /* -----[ PRINTERS ]----- */ - DEFPRINT(AST_Directive, function(self, output){ + DEFPRINT(AST_Directive, function(self, output) { output.print_string(self.value, self.quote); output.semicolon(); }); - DEFPRINT(AST_Debugger, function(self, output){ + DEFPRINT(AST_Debugger, function(self, output) { output.print("debugger"); output.semicolon(); }); @@ -849,7 +849,7 @@ function OutputStream(options) { function display_body(body, is_toplevel, output, allow_directives) { var last = body.length - 1; in_directive = allow_directives; - body.forEach(function(stmt, i){ + body.forEach(function(stmt, i) { if (in_directive === true && !(stmt instanceof AST_Directive || stmt instanceof AST_EmptyStatement || (stmt instanceof AST_SimpleStatement && stmt.body instanceof AST_String) @@ -874,24 +874,24 @@ function OutputStream(options) { in_directive = false; } - AST_StatementWithBody.DEFMETHOD("_do_print_body", function(output){ + AST_StatementWithBody.DEFMETHOD("_do_print_body", function(output) { force_statement(this.body, output); }); - DEFPRINT(AST_Statement, function(self, output){ + DEFPRINT(AST_Statement, function(self, output) { self.body.print(output); output.semicolon(); }); - DEFPRINT(AST_Toplevel, function(self, output){ + DEFPRINT(AST_Toplevel, function(self, output) { display_body(self.body, true, output, true); output.print(""); }); - DEFPRINT(AST_LabeledStatement, function(self, output){ + DEFPRINT(AST_LabeledStatement, function(self, output) { self.label.print(output); output.colon(); self.body.print(output); }); - DEFPRINT(AST_SimpleStatement, function(self, output){ + DEFPRINT(AST_SimpleStatement, function(self, output) { self.body.print(output); output.semicolon(); }); @@ -909,37 +909,37 @@ function OutputStream(options) { }); } else print_braced_empty(self, output); } - DEFPRINT(AST_BlockStatement, function(self, output){ + DEFPRINT(AST_BlockStatement, function(self, output) { print_braced(self, output); }); - DEFPRINT(AST_EmptyStatement, function(self, output){ + DEFPRINT(AST_EmptyStatement, function(self, output) { output.semicolon(); }); - DEFPRINT(AST_Do, function(self, output){ + DEFPRINT(AST_Do, function(self, output) { output.print("do"); output.space(); make_block(self.body, output); output.space(); output.print("while"); output.space(); - output.with_parens(function(){ + output.with_parens(function() { self.condition.print(output); }); output.semicolon(); }); - DEFPRINT(AST_While, function(self, output){ + DEFPRINT(AST_While, function(self, output) { output.print("while"); output.space(); - output.with_parens(function(){ + output.with_parens(function() { self.condition.print(output); }); output.space(); self._do_print_body(output); }); - DEFPRINT(AST_For, function(self, output){ + DEFPRINT(AST_For, function(self, output) { output.print("for"); output.space(); - output.with_parens(function(){ + output.with_parens(function() { if (self.init) { if (self.init instanceof AST_Definitions) { self.init.print(output); @@ -965,10 +965,10 @@ function OutputStream(options) { output.space(); self._do_print_body(output); }); - DEFPRINT(AST_ForIn, function(self, output){ + DEFPRINT(AST_ForIn, function(self, output) { output.print("for"); output.space(); - output.with_parens(function(){ + output.with_parens(function() { self.init.print(output); output.space(); output.print("in"); @@ -978,10 +978,10 @@ function OutputStream(options) { output.space(); self._do_print_body(output); }); - DEFPRINT(AST_With, function(self, output){ + DEFPRINT(AST_With, function(self, output) { output.print("with"); output.space(); - output.with_parens(function(){ + output.with_parens(function() { self.expression.print(output); }); output.space(); @@ -989,7 +989,7 @@ function OutputStream(options) { }); /* -----[ functions ]----- */ - AST_Lambda.DEFMETHOD("_do_print", function(output, nokeyword){ + AST_Lambda.DEFMETHOD("_do_print", function(output, nokeyword) { var self = this; if (!nokeyword) { output.print("function"); @@ -998,8 +998,8 @@ function OutputStream(options) { output.space(); self.name.print(output); } - output.with_parens(function(){ - self.argnames.forEach(function(arg, i){ + output.with_parens(function() { + self.argnames.forEach(function(arg, i) { if (i) output.comma(); arg.print(output); }); @@ -1007,40 +1007,31 @@ function OutputStream(options) { output.space(); print_braced(self, output, true); }); - DEFPRINT(AST_Lambda, function(self, output){ + DEFPRINT(AST_Lambda, function(self, output) { self._do_print(output); }); - /* -----[ exits ]----- */ - AST_Exit.DEFMETHOD("_do_print", function(output, kind){ + /* -----[ jumps ]----- */ + function print_jump(output, kind, target) { output.print(kind); - if (this.value) { + if (target) { output.space(); - this.value.print(output); + target.print(output); } output.semicolon(); - }); - DEFPRINT(AST_Return, function(self, output){ - self._do_print(output, "return"); - }); - DEFPRINT(AST_Throw, function(self, output){ - self._do_print(output, "throw"); - }); + } - /* -----[ loop control ]----- */ - AST_LoopControl.DEFMETHOD("_do_print", function(output, kind){ - output.print(kind); - if (this.label) { - output.space(); - this.label.print(output); - } - output.semicolon(); + DEFPRINT(AST_Return, function(self, output) { + print_jump(output, "return", self.value); + }); + DEFPRINT(AST_Throw, function(self, output) { + print_jump(output, "throw", self.value); }); - DEFPRINT(AST_Break, function(self, output){ - self._do_print(output, "break"); + DEFPRINT(AST_Break, function(self, output) { + print_jump(output, "break", self.label); }); - DEFPRINT(AST_Continue, function(self, output){ - self._do_print(output, "continue"); + DEFPRINT(AST_Continue, function(self, output) { + print_jump(output, "continue", self.label); }); /* -----[ if ]----- */ @@ -1072,10 +1063,10 @@ function OutputStream(options) { } force_statement(self.body, output); } - DEFPRINT(AST_If, function(self, output){ + DEFPRINT(AST_If, function(self, output) { output.print("if"); output.space(); - output.with_parens(function(){ + output.with_parens(function() { self.condition.print(output); }); output.space(); @@ -1094,17 +1085,17 @@ function OutputStream(options) { }); /* -----[ switch ]----- */ - DEFPRINT(AST_Switch, function(self, output){ + DEFPRINT(AST_Switch, function(self, output) { output.print("switch"); output.space(); - output.with_parens(function(){ + output.with_parens(function() { self.expression.print(output); }); output.space(); var last = self.body.length - 1; if (last < 0) print_braced_empty(self, output); - else output.with_block(function(){ - self.body.forEach(function(branch, i){ + else output.with_block(function() { + self.body.forEach(function(branch, i) { output.indent(true); branch.print(output); if (i < last && branch.body.length > 0) @@ -1112,19 +1103,19 @@ function OutputStream(options) { }); }); }); - AST_SwitchBranch.DEFMETHOD("_do_print_body", function(output){ + AST_SwitchBranch.DEFMETHOD("_do_print_body", function(output) { output.newline(); - this.body.forEach(function(stmt){ + this.body.forEach(function(stmt) { output.indent(); stmt.print(output); output.newline(); }); }); - DEFPRINT(AST_Default, function(self, output){ + DEFPRINT(AST_Default, function(self, output) { output.print("default:"); self._do_print_body(output); }); - DEFPRINT(AST_Case, function(self, output){ + DEFPRINT(AST_Case, function(self, output) { output.print("case"); output.space(); self.expression.print(output); @@ -1133,7 +1124,7 @@ function OutputStream(options) { }); /* -----[ exceptions ]----- */ - DEFPRINT(AST_Try, function(self, output){ + DEFPRINT(AST_Try, function(self, output) { output.print("try"); output.space(); print_braced(self, output); @@ -1146,37 +1137,30 @@ function OutputStream(options) { self.bfinally.print(output); } }); - DEFPRINT(AST_Catch, function(self, output){ + DEFPRINT(AST_Catch, function(self, output) { output.print("catch"); output.space(); - output.with_parens(function(){ + output.with_parens(function() { self.argname.print(output); }); output.space(); print_braced(self, output); }); - DEFPRINT(AST_Finally, function(self, output){ + DEFPRINT(AST_Finally, function(self, output) { output.print("finally"); output.space(); print_braced(self, output); }); - /* -----[ var/const ]----- */ - AST_Definitions.DEFMETHOD("_do_print", function(output, kind){ - output.print(kind); + DEFPRINT(AST_Var, function(self, output) { + output.print("var"); output.space(); - this.definitions.forEach(function(def, i){ + self.definitions.forEach(function(def, i) { if (i) output.comma(); def.print(output); }); var p = output.parent(); - var in_for = p instanceof AST_For || p instanceof AST_ForIn; - var avoid_semicolon = in_for && p.init === this; - if (!avoid_semicolon) - output.semicolon(); - }); - DEFPRINT(AST_Var, function(self, output){ - self._do_print(output, "var"); + if (p.init !== self || !(p instanceof AST_For || p instanceof AST_ForIn)) output.semicolon(); }); function parenthesize_for_noin(node, output, noin) { @@ -1193,7 +1177,7 @@ function OutputStream(options) { node.print(output, parens); } - DEFPRINT(AST_VarDef, function(self, output){ + DEFPRINT(AST_VarDef, function(self, output) { self.name.print(output); if (self.value) { output.space(); @@ -1206,28 +1190,27 @@ function OutputStream(options) { }); /* -----[ other expressions ]----- */ - DEFPRINT(AST_Call, function(self, output){ + DEFPRINT(AST_Call, function(self, output) { self.expression.print(output); if (self instanceof AST_New && !need_constructor_parens(self, output)) return; if (self.expression instanceof AST_Call || self.expression instanceof AST_Lambda) { output.add_mapping(self.start); } - output.with_parens(function(){ - self.args.forEach(function(expr, i){ + output.with_parens(function() { + self.args.forEach(function(expr, i) { if (i) output.comma(); expr.print(output); }); }); }); - DEFPRINT(AST_New, function(self, output){ + DEFPRINT(AST_New, function(self, output) { output.print("new"); output.space(); AST_Call.prototype._codegen(self, output); }); - - AST_Sequence.DEFMETHOD("_do_print", function(output){ - this.expressions.forEach(function(node, index) { + DEFPRINT(AST_Sequence, function(self, output) { + self.expressions.forEach(function(node, index) { if (index > 0) { output.comma(); if (output.should_break()) { @@ -1238,18 +1221,7 @@ function OutputStream(options) { node.print(output); }); }); - DEFPRINT(AST_Sequence, function(self, output){ - self._do_print(output); - // var p = output.parent(); - // if (p instanceof AST_Statement) { - // output.with_indent(output.next_indent(), function(){ - // self._do_print(output); - // }); - // } else { - // self._do_print(output); - // } - }); - DEFPRINT(AST_Dot, function(self, output){ + DEFPRINT(AST_Dot, function(self, output) { var expr = self.expression; expr.print(output); var prop = self.property; @@ -1270,13 +1242,13 @@ function OutputStream(options) { output.print_name(prop); } }); - DEFPRINT(AST_Sub, function(self, output){ + DEFPRINT(AST_Sub, function(self, output) { self.expression.print(output); output.print("["); self.property.print(output); output.print("]"); }); - DEFPRINT(AST_UnaryPrefix, function(self, output){ + DEFPRINT(AST_UnaryPrefix, function(self, output) { var op = self.operator; output.print(op); if (/^[a-z]/i.test(op) @@ -1287,11 +1259,11 @@ function OutputStream(options) { } self.expression.print(output); }); - DEFPRINT(AST_UnaryPostfix, function(self, output){ + DEFPRINT(AST_UnaryPostfix, function(self, output) { self.expression.print(output); output.print(self.operator); }); - DEFPRINT(AST_Binary, function(self, output){ + DEFPRINT(AST_Binary, function(self, output) { var op = self.operator; self.left.print(output); if (op[0] == ">" /* ">>" ">>>" ">" ">=" */ @@ -1317,7 +1289,7 @@ function OutputStream(options) { } self.right.print(output); }); - DEFPRINT(AST_Conditional, function(self, output){ + DEFPRINT(AST_Conditional, function(self, output) { self.condition.print(output); output.space(); output.print("?"); @@ -1329,11 +1301,11 @@ function OutputStream(options) { }); /* -----[ literals ]----- */ - DEFPRINT(AST_Array, function(self, output){ - output.with_square(function(){ + DEFPRINT(AST_Array, function(self, output) { + output.with_square(function() { var a = self.elements, len = a.length; if (len > 0) output.space(); - a.forEach(function(exp, i){ + a.forEach(function(exp, i) { if (i) output.comma(); exp.print(output); // If the final element is a hole, we need to make sure it @@ -1345,9 +1317,9 @@ function OutputStream(options) { if (len > 0) output.space(); }); }); - DEFPRINT(AST_Object, function(self, output){ - if (self.properties.length > 0) output.with_block(function(){ - self.properties.forEach(function(prop, i){ + DEFPRINT(AST_Object, function(self, output) { + if (self.properties.length > 0) output.with_block(function() { + self.properties.forEach(function(prop, i) { if (i) { output.print(","); output.newline(); @@ -1376,7 +1348,7 @@ function OutputStream(options) { } } - DEFPRINT(AST_ObjectKeyVal, function(self, output){ + DEFPRINT(AST_ObjectKeyVal, function(self, output) { print_property_name(self.key, self.quote, output); output.colon(); self.value.print(output); @@ -1387,27 +1359,27 @@ function OutputStream(options) { print_property_name(this.key.name, this.quote, output); this.value._do_print(output, true); }); - DEFPRINT(AST_ObjectSetter, function(self, output){ + DEFPRINT(AST_ObjectSetter, function(self, output) { self._print_getter_setter("set", output); }); - DEFPRINT(AST_ObjectGetter, function(self, output){ + DEFPRINT(AST_ObjectGetter, function(self, output) { self._print_getter_setter("get", output); }); - DEFPRINT(AST_Symbol, function(self, output){ + DEFPRINT(AST_Symbol, function(self, output) { var def = self.definition(); output.print_name(def ? def.mangled_name || def.name : self.name); }); DEFPRINT(AST_Hole, noop); - DEFPRINT(AST_This, function(self, output){ + DEFPRINT(AST_This, function(self, output) { output.print("this"); }); - DEFPRINT(AST_Constant, function(self, output){ + DEFPRINT(AST_Constant, function(self, output) { output.print(self.getValue()); }); - DEFPRINT(AST_String, function(self, output){ + DEFPRINT(AST_String, function(self, output) { output.print_string(self.getValue(), self.quote, in_directive); }); - DEFPRINT(AST_Number, function(self, output){ + DEFPRINT(AST_Number, function(self, output) { if (use_asm && self.start && self.start.raw != null) { output.print(self.start.raw); } else { @@ -1415,7 +1387,7 @@ function OutputStream(options) { } }); - DEFPRINT(AST_RegExp, function(self, output){ + DEFPRINT(AST_RegExp, function(self, output) { var regexp = self.getValue(); var str = regexp.toString(); if (regexp.raw_source) { @@ -1487,7 +1459,7 @@ function OutputStream(options) { output.print("{}"); else if (stmt instanceof AST_BlockStatement) stmt.print(output); - else output.with_block(function(){ + else output.with_block(function() { output.indent(); stmt.print(output); output.newline(); |