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Merge pull request #27 from mohayonao/refactoring
refactoring
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,184 +1,3 @@ | ||
| (function(sc) { | ||
| "use strict"; | ||
|
|
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| require("./sc"); | ||
|
|
||
| var compiler = {}; | ||
|
|
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| compiler.Token = { | ||
| CharLiteral: "Char", | ||
| EOF: "<EOF>", | ||
| FalseLiteral: "False", | ||
| FloatLiteral: "Float", | ||
| Identifier: "Identifier", | ||
| IntegerLiteral: "Integer", | ||
| Keyword: "Keyword", | ||
| Label: "Label", | ||
| NilLiteral: "Nil", | ||
| Punctuator: "Punctuator", | ||
| StringLiteral: "String", | ||
| SymbolLiteral: "Symbol", | ||
| TrueLiteral: "True" | ||
| }; | ||
|
|
||
| compiler.Syntax = { | ||
| AssignmentExpression: "AssignmentExpression", | ||
| BinaryExpression: "BinaryExpression", | ||
| BlockExpression: "BlockExpression", | ||
| CallExpression: "CallExpression", | ||
| FunctionExpression: "FunctionExpression", | ||
| GlobalExpression: "GlobalExpression", | ||
| Identifier: "Identifier", | ||
| ListExpression: "ListExpression", | ||
| Label: "Label", | ||
| Literal: "Literal", | ||
| ObjectExpression: "ObjectExpression", | ||
| Program: "Program", | ||
| ThisExpression: "ThisExpression", | ||
| UnaryExpression: "UnaryExpression", | ||
| VariableDeclaration: "VariableDeclaration", | ||
| VariableDeclarator: "VariableDeclarator" | ||
| }; | ||
|
|
||
| var Message = compiler.Message = { | ||
| ArgumentAlreadyDeclared: "argument '%0' already declared", | ||
| InvalidLHSInAssignment: "invalid left-hand side in assignment", | ||
| NotImplemented: "not implemented %0", | ||
| UnexpectedEOS: "unexpected end of input", | ||
| UnexpectedIdentifier: "unexpected identifier", | ||
| UnexpectedChar: "unexpected char", | ||
| UnexpectedLabel: "unexpected label", | ||
| UnexpectedNumber: "unexpected number", | ||
| UnexpectedString: "unexpected string", | ||
| UnexpectedSymbol: "unexpected symbol", | ||
| UnexpectedToken: "unexpected token %0", | ||
| VariableAlreadyDeclared: "variable '%0' already declared", | ||
| VariableNotDefined: "variable '%0' not defined" | ||
| }; | ||
|
|
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| compiler.Keywords = { | ||
| var: "keyword", | ||
| arg: "keyword", | ||
| const: "keyword", | ||
| this: "function", | ||
| thisThread: "function", | ||
| thisProcess: "function", | ||
| thisFunction: "function", | ||
| thisFunctionDef: "function", | ||
| }; | ||
|
|
||
| var Scope = (function() { | ||
| function Scope(methods) { | ||
| var f = function(parent) { | ||
| this.parent = parent; | ||
| this.stack = []; | ||
| }; | ||
|
|
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| function F() {} | ||
| F.prototype = Scope; | ||
| f.prototype = new F(); | ||
|
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| Object.keys(methods).forEach(function(key) { | ||
| f.prototype[key] = methods[key]; | ||
| }); | ||
|
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| return f; | ||
| } | ||
|
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| Scope.add = function(type, id, scope) { | ||
| var peek = this.stack[this.stack.length - 1]; | ||
| var vars, args, declared, stmt, indent; | ||
|
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| if (scope) { | ||
| vars = scope.vars; | ||
| args = scope.args; | ||
| declared = scope.declared; | ||
| stmt = scope.stmt; | ||
| indent = scope.indent; | ||
| } else { | ||
| vars = peek.vars; | ||
| args = peek.args; | ||
| declared = peek.declared; | ||
| stmt = peek.stmt; | ||
| indent = peek.indent; | ||
| } | ||
|
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| if (args[id]) { | ||
| this.parent.throwError({}, Message.ArgumentAlreadyDeclared, id); | ||
| } | ||
|
|
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| if (vars[id] && id.charAt(0) !== "_") { | ||
| this.parent.throwError({}, Message.VariableAlreadyDeclared, id); | ||
| } | ||
|
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| switch (type) { | ||
| case "var": | ||
| if (!vars[id]) { | ||
| this.add_delegate(stmt, id, indent, peek, scope); | ||
| vars[id] = true; | ||
| delete declared[id]; | ||
| } | ||
| break; | ||
| case "arg": | ||
| args[id] = true; | ||
| delete declared[id]; | ||
| break; | ||
| } | ||
| }; | ||
|
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| Scope.add_delegate = function() { | ||
| }; | ||
|
|
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| Scope.end = function() { | ||
| this.stack.pop(); | ||
| }; | ||
|
|
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| Scope.getDeclaredVariable = function() { | ||
| var peek = this.stack[this.stack.length - 1]; | ||
| var declared = {}; | ||
|
|
||
| if (peek) { | ||
| Array.prototype.concat.apply([], [ | ||
| peek.declared, peek.args, peek.vars | ||
| ].map(Object.keys)).forEach(function(key) { | ||
| declared[key] = true; | ||
| }); | ||
| } | ||
|
|
||
| return declared; | ||
| }; | ||
|
|
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| Scope.find = function(id) { | ||
| var peek = this.stack[this.stack.length - 1]; | ||
| return peek.vars[id] || peek.args[id] || peek.declared[id]; | ||
| }; | ||
|
|
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| Scope.peek = function() { | ||
| return this.stack[this.stack.length - 1]; | ||
| }; | ||
|
|
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| return Scope; | ||
| })(); | ||
|
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| compiler.Scope = Scope; | ||
|
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| sc.lang.compiler = compiler; | ||
|
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| var SCScript = sc.SCScript; | ||
|
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| SCScript.tokenize = function(source, opts) { | ||
| opts = opts || /* istanbul ignore next */ {}; | ||
| opts.tokens = true; | ||
| return sc.lang.parser.parse(source, opts).tokens || /* istanbul ignore next */ []; | ||
| }; | ||
|
|
||
| SCScript.parse = function(source, opts) { | ||
| return sc.lang.parser.parse(source, opts); | ||
| }; | ||
|
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| SCScript.compile = function(source, opts) { | ||
| var ast = SCScript.parse(source, opts); | ||
| return sc.lang.codegen.compile(ast, opts); | ||
| }; | ||
|
|
||
| })(sc); | ||
| require("./compiler/compiler"); | ||
| require("./compiler/parser"); | ||
| require("./compiler/codegen"); |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,89 @@ | ||
| (function(sc) { | ||
| "use strict"; | ||
|
|
||
| require("./sc"); | ||
|
|
||
| var compiler = {}; | ||
|
|
||
| compiler.Token = { | ||
| CharLiteral: "Char", | ||
| EOF: "<EOF>", | ||
| FalseLiteral: "False", | ||
| FloatLiteral: "Float", | ||
| Identifier: "Identifier", | ||
| IntegerLiteral: "Integer", | ||
| Keyword: "Keyword", | ||
| Label: "Label", | ||
| NilLiteral: "Nil", | ||
| Punctuator: "Punctuator", | ||
| StringLiteral: "String", | ||
| SymbolLiteral: "Symbol", | ||
| TrueLiteral: "True" | ||
| }; | ||
|
|
||
| compiler.Syntax = { | ||
| AssignmentExpression: "AssignmentExpression", | ||
| BinaryExpression: "BinaryExpression", | ||
| BlockExpression: "BlockExpression", | ||
| CallExpression: "CallExpression", | ||
| FunctionExpression: "FunctionExpression", | ||
| GlobalExpression: "GlobalExpression", | ||
| Identifier: "Identifier", | ||
| ListExpression: "ListExpression", | ||
| Label: "Label", | ||
| Literal: "Literal", | ||
| ObjectExpression: "ObjectExpression", | ||
| Program: "Program", | ||
| ThisExpression: "ThisExpression", | ||
| UnaryExpression: "UnaryExpression", | ||
| VariableDeclaration: "VariableDeclaration", | ||
| VariableDeclarator: "VariableDeclarator" | ||
| }; | ||
|
|
||
| compiler.Message = { | ||
| ArgumentAlreadyDeclared: "argument '%0' already declared", | ||
| InvalidLHSInAssignment: "invalid left-hand side in assignment", | ||
| NotImplemented: "not implemented %0", | ||
| UnexpectedEOS: "unexpected end of input", | ||
| UnexpectedIdentifier: "unexpected identifier", | ||
| UnexpectedChar: "unexpected char", | ||
| UnexpectedLabel: "unexpected label", | ||
| UnexpectedNumber: "unexpected number", | ||
| UnexpectedString: "unexpected string", | ||
| UnexpectedSymbol: "unexpected symbol", | ||
| UnexpectedToken: "unexpected token %0", | ||
| VariableAlreadyDeclared: "variable '%0' already declared", | ||
| VariableNotDefined: "variable '%0' not defined" | ||
| }; | ||
|
|
||
| compiler.Keywords = { | ||
| var: "keyword", | ||
| arg: "keyword", | ||
| const: "keyword", | ||
| this: "function", | ||
| thisThread: "function", | ||
| thisProcess: "function", | ||
| thisFunction: "function", | ||
| thisFunctionDef: "function", | ||
| }; | ||
|
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| sc.lang.compiler = compiler; | ||
|
|
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| var SCScript = sc.SCScript; | ||
|
|
||
| SCScript.tokenize = function(source, opts) { | ||
| opts = opts || /* istanbul ignore next */ {}; | ||
| opts.tokens = true; | ||
| return sc.lang.parser.parse(source, opts).tokens || /* istanbul ignore next */ []; | ||
| }; | ||
|
|
||
| SCScript.parse = function(source, opts) { | ||
| return sc.lang.parser.parse(source, opts); | ||
| }; | ||
|
|
||
| SCScript.compile = function(source, opts) { | ||
| var ast = SCScript.parse(source, opts); | ||
| return sc.lang.codegen.compile(ast, opts); | ||
| }; | ||
|
|
||
| })(sc); |
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