ensured `arguments` in each scope
This commit is contained in:
parent
dafe6b09c5
commit
8cdee9c0f4
70
lib/scope.js
70
lib/scope.js
|
@ -1,12 +1,15 @@
|
||||||
(function() {
|
(function() {
|
||||||
var Scope, extend;
|
var Scope, _ref, extend, last;
|
||||||
var __hasProp = Object.prototype.hasOwnProperty;
|
var __hasProp = Object.prototype.hasOwnProperty;
|
||||||
extend = require('./helpers').extend;
|
_ref = require('./helpers'), extend = _ref.extend, last = _ref.last;
|
||||||
exports.Scope = (function() {
|
exports.Scope = (function() {
|
||||||
Scope = function(parent, expressions, method) {
|
Scope = function(_arg, _arg2, _arg3) {
|
||||||
var _ref;
|
this.method = _arg3;
|
||||||
_ref = [parent, expressions, method], this.parent = _ref[0], this.expressions = _ref[1], this.method = _ref[2];
|
this.expressions = _arg2;
|
||||||
this.variables = {};
|
this.parent = _arg;
|
||||||
|
this.variables = {
|
||||||
|
'arguments': 'arguments'
|
||||||
|
};
|
||||||
if (this.parent) {
|
if (this.parent) {
|
||||||
this.garbage = this.parent.garbage;
|
this.garbage = this.parent.garbage;
|
||||||
} else {
|
} else {
|
||||||
|
@ -20,12 +23,13 @@
|
||||||
return this.garbage.push([]);
|
return this.garbage.push([]);
|
||||||
};
|
};
|
||||||
Scope.prototype.endLevel = function() {
|
Scope.prototype.endLevel = function() {
|
||||||
var _i, _len, _ref, _result, name;
|
var _i, _len, _ref2, _result, name, vars;
|
||||||
_result = []; _ref = this.garbage.pop();
|
vars = this.variables;
|
||||||
for (_i = 0, _len = _ref.length; _i < _len; _i++) {
|
_result = []; _ref2 = this.garbage.pop();
|
||||||
name = _ref[_i];
|
for (_i = 0, _len = _ref2.length; _i < _len; _i++) {
|
||||||
if (this.variables[name] === 'var') {
|
name = _ref2[_i];
|
||||||
_result.push(this.variables[name] = 'reuse');
|
if (vars[name] === 'var') {
|
||||||
|
_result.push(vars[name] = 'reuse');
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
return _result;
|
return _result;
|
||||||
|
@ -38,11 +42,11 @@
|
||||||
return false;
|
return false;
|
||||||
};
|
};
|
||||||
Scope.prototype.any = function(fn) {
|
Scope.prototype.any = function(fn) {
|
||||||
var _ref, k, v;
|
var _ref2, k, v;
|
||||||
_ref = this.variables;
|
_ref2 = this.variables;
|
||||||
for (v in _ref) {
|
for (v in _ref2) {
|
||||||
if (!__hasProp.call(_ref, v)) continue;
|
if (!__hasProp.call(_ref2, v)) continue;
|
||||||
k = _ref[v];
|
k = _ref2[v];
|
||||||
if (fn(v, k)) {
|
if (fn(v, k)) {
|
||||||
return true;
|
return true;
|
||||||
}
|
}
|
||||||
|
@ -53,12 +57,12 @@
|
||||||
return (this.variables[name] = 'param');
|
return (this.variables[name] = 'param');
|
||||||
};
|
};
|
||||||
Scope.prototype.check = function(name, options) {
|
Scope.prototype.check = function(name, options) {
|
||||||
var immediate;
|
var _ref2, immediate;
|
||||||
immediate = Object.prototype.hasOwnProperty.call(this.variables, name);
|
immediate = Object.prototype.hasOwnProperty.call(this.variables, name);
|
||||||
if (immediate || (options && options.immediate)) {
|
if (immediate || ((options != null) ? options.immediate : null)) {
|
||||||
return immediate;
|
return immediate;
|
||||||
}
|
}
|
||||||
return !!(this.parent && this.parent.check(name));
|
return !!(((_ref2 = this.parent) != null) ? _ref2.check(name) : null);
|
||||||
};
|
};
|
||||||
Scope.prototype.temporary = function(type, index) {
|
Scope.prototype.temporary = function(type, index) {
|
||||||
return type.length > 1 ? '_' + type + (index > 1 ? index : '') : '_' + (index + parseInt(type, 36)).toString(36).replace(/\d/g, 'a');
|
return type.length > 1 ? '_' + type + (index > 1 ? index : '') : '_' + (index + parseInt(type, 36)).toString(36).replace(/\d/g, 'a');
|
||||||
|
@ -71,7 +75,7 @@
|
||||||
}
|
}
|
||||||
this.variables[temp] = 'var';
|
this.variables[temp] = 'var';
|
||||||
if (this.garbage.length) {
|
if (this.garbage.length) {
|
||||||
this.garbage[this.garbage.length - 1].push(temp);
|
last(this.garbage).push(temp);
|
||||||
}
|
}
|
||||||
return temp;
|
return temp;
|
||||||
};
|
};
|
||||||
|
@ -83,7 +87,7 @@
|
||||||
};
|
};
|
||||||
Scope.prototype.hasDeclarations = function(body) {
|
Scope.prototype.hasDeclarations = function(body) {
|
||||||
return body === this.expressions && this.any(function(k, val) {
|
return body === this.expressions && this.any(function(k, val) {
|
||||||
return val === 'var' || val === 'reuse';
|
return ('var' === val || 'reuse' === val);
|
||||||
});
|
});
|
||||||
};
|
};
|
||||||
Scope.prototype.hasAssignments = function(body) {
|
Scope.prototype.hasAssignments = function(body) {
|
||||||
|
@ -92,13 +96,13 @@
|
||||||
});
|
});
|
||||||
};
|
};
|
||||||
Scope.prototype.declaredVariables = function() {
|
Scope.prototype.declaredVariables = function() {
|
||||||
var _ref, _result, key, val;
|
var _ref2, _result, key, val;
|
||||||
return (function() {
|
return (function() {
|
||||||
_result = []; _ref = this.variables;
|
_result = []; _ref2 = this.variables;
|
||||||
for (key in _ref) {
|
for (key in _ref2) {
|
||||||
if (!__hasProp.call(_ref, key)) continue;
|
if (!__hasProp.call(_ref2, key)) continue;
|
||||||
val = _ref[key];
|
val = _ref2[key];
|
||||||
if (val === 'var' || val === 'reuse') {
|
if (('var' === val || 'reuse' === val)) {
|
||||||
_result.push(key);
|
_result.push(key);
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
@ -106,11 +110,11 @@
|
||||||
}).call(this).sort();
|
}).call(this).sort();
|
||||||
};
|
};
|
||||||
Scope.prototype.assignedVariables = function() {
|
Scope.prototype.assignedVariables = function() {
|
||||||
var _ref, _result, key, val;
|
var _ref2, _result, key, val;
|
||||||
_result = []; _ref = this.variables;
|
_result = []; _ref2 = this.variables;
|
||||||
for (key in _ref) {
|
for (key in _ref2) {
|
||||||
if (!__hasProp.call(_ref, key)) continue;
|
if (!__hasProp.call(_ref2, key)) continue;
|
||||||
val = _ref[key];
|
val = _ref2[key];
|
||||||
if (val.assigned) {
|
if (val.assigned) {
|
||||||
_result.push("" + (key) + " = " + (val.value));
|
_result.push("" + (key) + " = " + (val.value));
|
||||||
}
|
}
|
||||||
|
|
|
@ -6,7 +6,7 @@
|
||||||
# with the outside.
|
# with the outside.
|
||||||
|
|
||||||
# Import the helpers we plan to use.
|
# Import the helpers we plan to use.
|
||||||
{extend} = require './helpers'
|
{extend, last} = require './helpers'
|
||||||
|
|
||||||
exports.Scope = class Scope
|
exports.Scope = class Scope
|
||||||
|
|
||||||
|
@ -17,9 +17,8 @@ exports.Scope = class Scope
|
||||||
# as well as a reference to the **Expressions** node is belongs to, which is
|
# as well as a reference to the **Expressions** node is belongs to, which is
|
||||||
# where it should declare its variables, and a reference to the function that
|
# where it should declare its variables, and a reference to the function that
|
||||||
# it wraps.
|
# it wraps.
|
||||||
constructor: (parent, expressions, method) ->
|
constructor: (@parent, @expressions, @method) ->
|
||||||
[@parent, @expressions, @method] = [parent, expressions, method]
|
@variables = {'arguments'}
|
||||||
@variables = {}
|
|
||||||
if @parent
|
if @parent
|
||||||
@garbage = @parent.garbage
|
@garbage = @parent.garbage
|
||||||
else
|
else
|
||||||
|
@ -33,7 +32,8 @@ exports.Scope = class Scope
|
||||||
# Return to the previous garbage level and erase referenced temporary
|
# Return to the previous garbage level and erase referenced temporary
|
||||||
# variables in current level from scope.
|
# variables in current level from scope.
|
||||||
endLevel: ->
|
endLevel: ->
|
||||||
(@variables[name] = 'reuse') for name in @garbage.pop() when @variables[name] is 'var'
|
vars = @variables
|
||||||
|
(vars[name] = 'reuse') for name in @garbage.pop() when vars[name] is 'var'
|
||||||
|
|
||||||
# Look up a variable name in lexical scope, and declare it if it does not
|
# Look up a variable name in lexical scope, and declare it if it does not
|
||||||
# already exist.
|
# already exist.
|
||||||
|
@ -57,8 +57,8 @@ exports.Scope = class Scope
|
||||||
# walks up to the root scope.
|
# walks up to the root scope.
|
||||||
check: (name, options) ->
|
check: (name, options) ->
|
||||||
immediate = Object::hasOwnProperty.call @variables, name
|
immediate = Object::hasOwnProperty.call @variables, name
|
||||||
return immediate if immediate or (options and options.immediate)
|
return immediate if immediate or options?.immediate
|
||||||
!!(@parent and @parent.check(name))
|
!!@parent?.check name
|
||||||
|
|
||||||
# Generate a temporary variable name at the given index.
|
# Generate a temporary variable name at the given index.
|
||||||
temporary: (type, index) ->
|
temporary: (type, index) ->
|
||||||
|
@ -73,7 +73,7 @@ exports.Scope = class Scope
|
||||||
index = 0
|
index = 0
|
||||||
index++ while @check(temp = @temporary type, index) and @variables[temp] isnt 'reuse'
|
index++ while @check(temp = @temporary type, index) and @variables[temp] isnt 'reuse'
|
||||||
@variables[temp] = 'var'
|
@variables[temp] = 'var'
|
||||||
@garbage[@garbage.length - 1].push temp if @garbage.length
|
last(@garbage).push temp if @garbage.length
|
||||||
temp
|
temp
|
||||||
|
|
||||||
# Ensure that an assignment is made at the top of this scope
|
# Ensure that an assignment is made at the top of this scope
|
||||||
|
@ -84,7 +84,7 @@ exports.Scope = class Scope
|
||||||
# Does this scope reference any variables that need to be declared in the
|
# Does this scope reference any variables that need to be declared in the
|
||||||
# given function body?
|
# given function body?
|
||||||
hasDeclarations: (body) ->
|
hasDeclarations: (body) ->
|
||||||
body is @expressions and @any (k, val) -> val is 'var' or val is 'reuse'
|
body is @expressions and @any (k, val) -> val in ['var', 'reuse']
|
||||||
|
|
||||||
# Does this scope reference any assignments that need to be declared at the
|
# Does this scope reference any assignments that need to be declared at the
|
||||||
# top of the given function body?
|
# top of the given function body?
|
||||||
|
@ -93,7 +93,7 @@ exports.Scope = class Scope
|
||||||
|
|
||||||
# Return the list of variables first declared in this scope.
|
# Return the list of variables first declared in this scope.
|
||||||
declaredVariables: ->
|
declaredVariables: ->
|
||||||
(key for key, val of @variables when val is 'var' or val is 'reuse').sort()
|
(key for key, val of @variables when val in ['var', 'reuse']).sort()
|
||||||
|
|
||||||
# Return the list of assignments that are supposed to be made at the top
|
# Return the list of assignments that are supposed to be made at the top
|
||||||
# of this scope.
|
# of this scope.
|
||||||
|
|
Loading…
Reference in New Issue