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js: generate es5 methods for valueOf() and toString() (#12928)
Co-authored-by: pancake <pancake@nopcode.org>
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2693631643
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cb65f2ff44
@ -308,12 +308,22 @@ fn (mut g JsGen) gen_builtin_prototype(c BuiltinPrototypeConfig) {
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g.writeln('$c.extras,')
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}
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g.writeln('valueOf() { return $c.value_of },')
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g.writeln('toString() { return $c.to_string },')
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// g.writeln('eq(other) { return $c.eq },')
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g.writeln('\$toJS() { return $c.to_jsval }, ')
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if c.has_strfn {
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g.writeln('str() { return new string(this.toString()) }')
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if g.pref.output_es5 {
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g.writeln('valueOf: (function() { return $c.value_of }).bind(this),')
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g.writeln('toString: (function() { return $c.to_string }).bind(this),')
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g.writeln('\$toJS: (function() { return $c.to_jsval }).bind(this), ')
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if c.has_strfn {
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g.writeln('str: (function() { return new string(this.toString())).bind(this) }')
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}
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// g.writeln('eq: (function(other) { return $c.eq }).bind(this),')
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} else {
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g.writeln('valueOf() { return $c.value_of },')
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g.writeln('toString() { return $c.to_string },')
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g.writeln('\$toJS() { return $c.to_jsval }, ')
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if c.has_strfn {
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g.writeln('str() { return new string(this.toString()) }')
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}
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// g.writeln('eq(other) { return $c.eq },')
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}
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g.dec_indent()
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g.writeln('};\n')
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@ -1914,7 +1914,11 @@ fn (mut g JsGen) gen_struct_decl(node ast.StructDecl) {
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// gen toString method
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fn_names := fns.map(it.name)
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if 'toString' !in fn_names {
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g.writeln('toString() {')
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if g.pref.output_es5 {
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g.writeln('toString: (function() {')
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} else {
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g.writeln('toString() {')
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}
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g.inc_indent()
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g.write('return `$js_name {')
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for i, field in node.fields {
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@ -1930,7 +1934,11 @@ fn (mut g JsGen) gen_struct_decl(node ast.StructDecl) {
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}
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g.writeln('}`')
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g.dec_indent()
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g.writeln('},')
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if g.pref.output_es5 {
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g.writeln('}).bind(this),')
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} else {
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g.writeln('},')
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}
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}
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for field in node.fields {
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typ := g.typ(field.typ)
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@ -1946,8 +1954,11 @@ fn (mut g JsGen) gen_struct_decl(node ast.StructDecl) {
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g.writeln(',')
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}
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}
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g.writeln('\$toJS() { return this; }')
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if g.pref.output_es5 {
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g.writeln('\$toJS: (function() { return this; }).bind(this)')
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} else {
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g.writeln('\$toJS() { return this; }')
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}
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g.writeln('};\n')
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g.dec_indent()
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