71 lines
2.3 KiB
Haxe
71 lines
2.3 KiB
Haxe
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/*
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* Copyright (C)2005-2019 Haxe Foundation
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*/
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package php;
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import haxe.macro.Expr;
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import haxe.macro.Context;
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/**
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Special extern class to support PHP language specifics.
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Don't use these functions unless you are really sure what you are doing.
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**/
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@:noClosure
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@:noPackageRestrict
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class Syntax {
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/**
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```haxe
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Syntax.customArrayDecl([v1 => v2, v3 => v4]);
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```
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Generates native array declaration:
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```haxe
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[$v1 => $v2, $v3 => $v4]
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```
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**/
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macro static function customArrayDecl<T>(decl:Expr):ExprOf<php.NativeArray> {
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function invalidExpr(pos:Position) {
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Context.error('Invalid expression passed to php.Syntax.customArrayDecl()', pos);
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return macro @:pos(decl.pos) new php.NativeArray();
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}
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switch decl.expr {
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case EArrayDecl(items):
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var placeholders = [];
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var args = [];
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for(i => e in items) {
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switch e {
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case macro $index => $value:
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placeholders.push('{${i * 2}} => {${i * 2 + 1}}');
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args.push(index);
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args.push(value);
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case _:
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return invalidExpr(e.pos);
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}
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}
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var code = '[${placeholders.join(', ')}]';
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args.unshift(macro @:pos(decl.pos) $v{code});
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return macro @:pos(decl.pos) (php.Syntax.codeDeref($a{args}):php.NativeArray);
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case _:
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return invalidExpr(decl.pos);
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}
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}
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}
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