3147 lines
54 KiB
D
Executable File
3147 lines
54 KiB
D
Executable File
// Written in the D programming language
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/**
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* This module contains a _parser for D source code.
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*
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* Examples:
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* ---
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* // TODO
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* ---
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*
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* Copyright: Brian Schott 2013
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* License: $(LINK2 http://www.boost.org/LICENSE_1_0.txt Boost, License 1.0)
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* Authors: Brian Schott
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* Source: $(PHOBOSSRC std/d/_parser.d)
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* MACROS:
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* GRAMMAR = <pre>$0</pre>
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*/
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module std.d.parser;
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import std.d.lexer;
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import std.d.ast;
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import std.conv;
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import std.algorithm;
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version(unittest) import std.stdio;
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/**
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* Params:
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* tokens = the tokens parsed by std.d.lexer
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* Returns: the parsed module
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*/
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Module parseModule(R)(R tokens) if (is (ElementType!R == Token))
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{
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auto parser = new Parser();
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parser.tokens = tokens.array();
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return parser.parseModule();
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}
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/**
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* Parser structure
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*/
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struct Parser
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{
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/**
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* Parses an AddExpression.
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* $(GRAMMAR addExpression: mulExpression
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* | addExpression ('+' | '-' | '~') mulExpression
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* ;)
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*/
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AddExpression parseAddExpression()
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{
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auto node = new AddExpression;
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node.right = parseMulExpression();
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while (currentIsOneOf(TokenType.plus, TokenType.minus, TokenType.tilde))
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{
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node.operator = advance().type;
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auto newNode = new AddExpression;
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newNode.left = node;
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newNode.right = parseMulExpression();
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node = newNode;
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}
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return node;
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}
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/**
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* Parses an AliasDeclaration
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* $(GRAMMAR aliasDeclaration: 'alias' (aliasInitializer (',' aliasInitializer)* | type declarator) ';'
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* ;)
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*/
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AliasDeclaration parseAliasDeclaration()
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{
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auto node = new AliasDeclaration;
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expect(TokenType.alias_);
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// TODO
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expect(TokenType.semicolon);
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return node;
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}
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/**
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* Parses an AliasInitializer
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* $(GRAMMAR aliasInitializer: Identifier '=' type
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* ;)
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*/
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AliasInitializer parseAliasInitializer()
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{
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auto node = new AliasInitializer;
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node.identifier = *expect(TokenType.identifier);
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expect(TokenType.assign);
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node.type = parseType();
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return node;
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}
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/**
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* Parses an AliasThisDeclaration
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* $(GRAMMAR aliasThisDeclaration: 'alias' Identifier 'this' ';'
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* ;)
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*/
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AliasThisDeclaration parseAliasThisDeclaration()
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{
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auto node = new AliasThisDeclaration;
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expect(TokenType.alias_);
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node.identifier = *expect(TokenType.identifier);
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expect(TokenType.this_);
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expect(TokenType.semicolon);
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return node;
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}
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/**
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* Parses an AlignAttribute.
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* $(GRAMMAR alignAttribute: 'align' ('(' IntegerLiteral ')')?
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* ;)
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*/
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AlignAttribute parseAlignAttribute()
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{
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auto node = new AlignAttribute;
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expect(TokenType.align_);
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if (currentIs(TokenType.lParen))
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{
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expect(TokenType.lParen);
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node.intLiteral = *expect(TokenType.intLiteral);
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expect(TokenType.rParen);
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}
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return node;
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}
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/**
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* Parses an AndAndExpression
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* $(GRAMMAR andAndExpression: orExpression
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* | andAndExpression '&&' orExpression
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* ;)
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*/
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AndAndExpression parseAndAndExpression()
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{
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auto node = new AndAndExpression;
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node.right = parseOrExpression();
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while (currentIs(TokenType.logicAnd))
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{
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advance();
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auto node2 = new AndAndExpression;
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node2.left = node;
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node2.right = parseOrExpression();
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node = node2;
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}
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return node;
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}
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/**
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* Parses an AndExpression
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*
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* $(GRAMMAR )
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*/
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AndExpression parseAndExpression()
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{
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auto node = new AndExpression;
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// TODO
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return node;
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}
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/**
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* Parses an ArgumentList
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*
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* $(GRAMMAR )
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*/
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ArgumentList parseArgumentList()
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{
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auto node = new ArgumentList;
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// TODO
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return node;
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}
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/**
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* Parses an Arguments
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*
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* $(GRAMMAR )
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*/
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Arguments parseArguments()
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{
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auto node = new Arguments;
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expect(TokenType.lParen);
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node.argumentList = parseArgumentList();
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expect(TokenType.rParen);
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return node;
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}
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/**
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* Parses an ArrayInitializer
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*
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* $(GRAMMAR )
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*/
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ArrayInitializer parseArrayInitializer()
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{
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auto node = new ArrayInitializer;
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// TODO
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return node;
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}
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/**
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* Parses an ArrayLiteral
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*
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* $(GRAMMAR arrayLiteral: '[' argumentList ']'
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* ;)
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*/
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ArrayLiteral parseArrayLiteral()
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{
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auto node = new ArrayLiteral;
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expect(TokenType.lBracket);
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node.argumentList = parseArgumentList();
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expect(TokenType.rBracket);
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return node;
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}
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/**
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* Parses an ArrayMemberInitialization
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*
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* $(GRAMMAR )
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*/
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ArrayMemberInitialization parseArrayMemberInitialization()
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{
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auto node = new ArrayMemberInitialization;
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// TODO
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return node;
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}
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/**
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* Parses an ArrayMemberInitializations
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*
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* $(GRAMMAR )
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*/
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ArrayMemberInitializations parseArrayMemberInitializations()
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{
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auto node = new ArrayMemberInitializations;
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// TODO
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return node;
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}
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/**
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* Parses an AsmAddExp
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*
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* $(GRAMMAR )
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*/
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AsmAddExp parseAsmAddExp()
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{
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auto node = new AsmAddExp;
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// TODO
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return node;
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}
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/**
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* Parses an AsmAndExp
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*
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* $(GRAMMAR )
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*/
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AsmAndExp parseAsmAndExp()
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{
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auto node = new AsmAndExp;
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// TODO
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return node;
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}
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/**
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* Parses an AsmBrExp
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*
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* $(GRAMMAR )
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*/
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AsmBrExp parseAsmBrExp()
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{
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auto node = new AsmBrExp;
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// TODO
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return node;
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}
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/**
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* Parses an AsmEqualExp
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*
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* $(GRAMMAR )
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*/
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AsmEqualExp parseAsmEqualExp()
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{
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auto node = new AsmEqualExp;
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// TODO
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return node;
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}
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/**
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* Parses an AsmExp
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*
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* $(GRAMMAR )
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*/
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AsmExp parseAsmExp()
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{
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auto node = new AsmExp;
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return node;
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}
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/**
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* Parses an AsmInstruction
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*
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* $(GRAMMAR )
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*/
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AsmInstruction parseAsmInstruction()
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{
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auto node = new AsmInstruction;
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return node;
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}
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/**
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* Parses an AsmLogAndExp
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*
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* $(GRAMMAR )
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*/
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AsmLogAndExp parseAsmLogAndExp()
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{
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auto node = new AsmLogAndExp;
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return node;
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}
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/**
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* Parses an AsmLogOrExp
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*
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* $(GRAMMAR )
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*/
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AsmLogOrExp parseAsmLogOrExp()
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{
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auto node = new AsmLogOrExp;
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return node;
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}
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/**
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* Parses an AsmMulExp
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*
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* $(GRAMMAR )
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*/
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AsmMulExp parseAsmMulExp()
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{
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auto node = new AsmMulExp;
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return node;
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}
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/**
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* Parses an AsmOrExp
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*
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* $(GRAMMAR )
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*/
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AsmOrExp parseAsmOrExp()
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{
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auto node = new AsmOrExp;
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return node;
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}
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/**
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* Parses an AsmPrimaryExp
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*
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* $(GRAMMAR )
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*/
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AsmPrimaryExp parseAsmPrimaryExp()
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{
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auto node = new AsmPrimaryExp;
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return node;
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}
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/**
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* Parses an AsmRelExp
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*
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* $(GRAMMAR )
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*/
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AsmRelExp parseAsmRelExp()
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{
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auto node = new AsmRelExp;
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return node;
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}
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/**
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* Parses an AsmShiftExp
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*
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* $(GRAMMAR )
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*/
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AsmShiftExp parseAsmShiftExp()
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{
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auto node = new AsmShiftExp;
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return node;
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}
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/**
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* Parses an AsmStatement
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*
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* $(GRAMMAR )
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*/
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AsmStatement parseAsmStatement()
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{
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auto node = new AsmStatement;
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return node;
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}
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/**
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* Parses an AsmTypePrefix
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*
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* $(GRAMMAR )
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*/
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AsmTypePrefix parseAsmTypePrefix()
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{
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auto node = new AsmTypePrefix;
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return node;
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}
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/**
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* Parses an AsmUnaExp
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*
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* $(GRAMMAR )
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*/
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AsmUnaExp parseAsmUnaExp()
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{
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auto node = new AsmUnaExp;
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return node;
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}
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/**
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* Parses an AsmXorExp
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*
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* $(GRAMMAR )
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*/
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AsmXorExp parseAsmXorExp()
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{
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auto node = new AsmXorExp;
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return node;
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}
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/**
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* Parses an AssertExpression
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*
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* $(GRAMMAR )
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*/
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AssertExpression parseAssertExpression()
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{
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auto node = new AssertExpression;
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return node;
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}
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/**
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* Parses an AssertStatement
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*
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* $(GRAMMAR )
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*/
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AssertStatement parseAssertStatement()
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{
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auto node = new AssertStatement;
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return node;
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}
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/**
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* Parses an AssignExpression
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*
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* $(GRAMMAR )
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*/
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AssignExpression parseAssignExpression()
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{
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auto node = new AssignExpression;
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return node;
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}
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/**
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* Parses an AssignStatement
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*
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* $(GRAMMAR )
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*/
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AssignStatement parseAssignStatement()
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{
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auto node = new AssignStatement;
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return node;
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}
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/**
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* Parses an AssocArrayLiteral
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*
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* $(GRAMMAR assocArrayLiteral: '[' keyValuePairs ']'
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* ;)
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*/
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AssocArrayLiteral parseAssocArrayLiteral()
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{
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auto node = new AssocArrayLiteral;
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expect(TokenType.lBracket);
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node.keyValuePairs = parseKeyValuePairs();
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expect(TokenType.rBracket);
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return node;
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}
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/**
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* Parses an AtAttribute
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*
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* $(GRAMMAR )
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*/
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AtAttribute parseAtAttribute()
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{
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auto node = new AtAttribute;
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return node;
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}
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/**
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* Parses an Attribute
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*
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* $(GRAMMAR )
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*/
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Attribute parseAttribute()
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{
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auto node = new Attribute;
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return node;
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}
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/**
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* Parses an AttributedDeclaration
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*
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* $(GRAMMAR )
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*/
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AttributedDeclaration parseAttributedDeclaration()
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{
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auto node = new AttributedDeclaration;
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return node;
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}
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/**
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* Parses an AutoDeclaration
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*
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* $(GRAMMAR )
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*/
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AutoDeclaration parseAutoDeclaration()
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{
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auto node = new AutoDeclaration;
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return node;
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}
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/**
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* Parses a BlockStatement
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*
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* $(GRAMMAR blockStatement: '{' declarationsAndStatements? '}'
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* ;)
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*/
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BlockStatement parseBlockStatement()
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{
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auto node = new BlockStatement();
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expect(TokenType.lBrace);
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if (!currentIs(TokenType.rBrace))
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node.declarationsAndStatements = parseDeclarationsAndStatements();
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expect(TokenType.rBrace);
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return node;
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}
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/**
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* Parses a BodyStatement
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*
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* $(GRAMMAR bodyStatement: 'body' blockStatement
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* ;)
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*/
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BodyStatement parseBodyStatement()
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{
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auto node = new BodyStatement;
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expect(TokenType.body_);
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node.blockStatement = parseBlockStatement();
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return node;
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}
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/**
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* Parses a BreakStatement
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*
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* $(GRAMMAR breakStatement: 'break' Identifier? ';'
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* ;)
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*/
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BreakStatement parseBreakStatement()
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{
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expect(TokenType.break_);
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auto node = new BreakStatement;
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switch (current().type)
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{
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case TokenType.identifier:
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node.identifier = advance();
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expect(TokenType.semicolon);
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break;
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case TokenType.semicolon:
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advance();
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break;
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default:
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error("Identifier or semicolon expected following \"break\"");
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return null;
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}
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return node;
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}
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/**
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* Parses an BuiltinType
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*
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* $(GRAMMAR builtinType: 'bool'
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* | 'byte'
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* | 'ubyte'
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* | 'short'
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* | 'ushort'
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* | 'int'
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* | 'uint'
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* | 'long'
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* | 'ulong'
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* | 'char'
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* | 'wchar'
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* | 'dchar'
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* | 'float'
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* | 'double'
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* | 'real'
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* | 'ifloat'
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* | 'idouble'
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* | 'ireal'
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* | 'cfloat'
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* | 'cdouble'
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* | 'creal'
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* | 'void'
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* ;)
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*/
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BasicType parseBasicType()
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{
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auto node = new BasicType;
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if (isBasicType(current().type))
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node.type = advance().type;
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else
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{
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error("Basic type expected");
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return null;
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}
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return node;
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}
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|
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/**
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* Parses a CaseRangeStatement
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*
|
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* $(GRAMMAR caseRangeStatement: 'case' assignExpression ':' '...' 'case' assignExpression ':' declarationsAndStatements
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* ;)
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*/
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CaseRangeStatement parseCaseRangeStatement()
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{
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auto node = new CaseRangeStatement;
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expect(TokenType.case_);
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node.low = parseAssignExpression();
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expect(TokenType.colon);
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expect(TokenType.vararg);
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expect(TokenType.case_);
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node.high = parseAssignExpression();
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expect(TokenType.colon);
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node.declarationsAndStatements = parseDeclarationsAndStatements();
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return node;
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}
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|
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/**
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* Parses an CaseStatement
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*
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* $(GRAMMAR caseStatement: 'case' argumentList ':' declarationsAndStatements
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* ;)
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*/
|
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CaseStatement parseCaseStatement()
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{
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auto node = new CaseStatement;
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expect(TokenType.case_);
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node.argumentList = parseArgumentList();
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expect(TokenType.colon);
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node.declarationsAndStatements = parseDeclarationsAndStatements();
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return node;
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}
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/**
|
|
* Parses an CastExpression
|
|
*
|
|
* $(GRAMMAR )
|
|
*/
|
|
CastExpression parseCastExpression()
|
|
{
|
|
auto node = new CastExpression;
|
|
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses a CastQualifier
|
|
*
|
|
* $(GRAMMAR castQualifier: 'const'
|
|
* | 'const' 'shared'
|
|
* | 'immutable'
|
|
* | 'inout'
|
|
* | 'inout' 'shared'
|
|
* | 'shared'
|
|
* | 'shared' 'const'
|
|
* | 'shared' 'inout'
|
|
* ;)
|
|
*/
|
|
CastQualifier parseCastQualifier()
|
|
{
|
|
auto node = new CastQualifier;
|
|
switch (current().type)
|
|
{
|
|
case TokenType.inout_:
|
|
case TokenType.const_:
|
|
node.first = advance().type;
|
|
if (currentIs(TokenType.shared_))
|
|
node.second = advance().type;
|
|
break;
|
|
case TokenType.shared_:
|
|
node.first = advance().type;
|
|
if (currentIsOneOf(TokenType.const_, TokenType.inout_))
|
|
node.second = advance().type;
|
|
break;
|
|
case TokenType.immutable_:
|
|
node.first = advance().type;
|
|
break;
|
|
default:
|
|
error("const, immutable, inout, or shared expected");
|
|
return null;
|
|
}
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses a Catch
|
|
*
|
|
* $(GRAMMAR catch_: 'catch' '(' type Identifier? ')' nonEmptyStatementNoCaseNoDefault
|
|
* ;)
|
|
*/
|
|
Catch parseCatch()
|
|
{
|
|
auto node = new Catch;
|
|
expect(TokenType.catch_);
|
|
expect(TokenType.lParen);
|
|
node.type = parseType();
|
|
if (currentIs(TokenType.identifier))
|
|
node.identifier = advance();
|
|
expect(TokenType.rParen);
|
|
node.nonEmptyStatementNoCaseNoDefault = parseNonEmptyStatementNoCaseNoDefault();
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses a Catches
|
|
*
|
|
* $(GRAMMAR )
|
|
*/
|
|
Catches parseCatches()
|
|
{
|
|
auto node = new Catches;
|
|
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses an ClassBody
|
|
*
|
|
* $(GRAMMAR classBody: '{' declarationOrInvariant* '}'
|
|
* ;)
|
|
*/
|
|
ClassBody parseClassBody()
|
|
{
|
|
auto node = new ClassBody;
|
|
expect(TokenType.lBrace);
|
|
while (!currentIs(TokenType.rBrace))
|
|
node.declarationOrInvariants ~= parseDeclarationOrInvariant();
|
|
expect(TokenType.rBrace);
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses an ClassDeclaration
|
|
*
|
|
* $(GRAMMAR classDeclaration: 'class' Identifier (templateParameters constraint?)? (':' identifierList )? classBody
|
|
* ;)
|
|
*/
|
|
ClassDeclaration parseClassDeclaration()
|
|
{
|
|
auto node = new ClassDeclaration;
|
|
expect(TokenType.class_);
|
|
node.name = *expect(TokenType.identifier);
|
|
if (currentIs(TokenType.lParen))
|
|
{
|
|
node.templateParameters = parseTemplateParameters();
|
|
if (currentIs(TokenType.if_))
|
|
node.constraint = parseConstraint();
|
|
}
|
|
if (currentIs(TokenType.colon))
|
|
node.superClasses = parseIdentifierList();
|
|
node.classBody = parseClassBody();
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses an CmpExpression
|
|
*
|
|
* $(GRAMMAR )
|
|
*/
|
|
CmpExpression parseCmpExpression()
|
|
{
|
|
auto node = new CmpExpression;
|
|
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses a CompileCondition
|
|
*
|
|
* $(GRAMMAR compileCondition: versionCondition
|
|
* | debugCondition
|
|
* | staticIfCondition
|
|
* ;)
|
|
*/
|
|
CompileCondition parseCompileCondition()
|
|
{
|
|
auto node = new CompileCondition;
|
|
switch (current().type)
|
|
{
|
|
case TokenType.version_:
|
|
node.versionCondition = parseVersionCondition();
|
|
break;
|
|
case TokenType.debug_:
|
|
node.debugCondition = parseDebugCondition();
|
|
break;
|
|
case TokenType.static_:
|
|
node.staticIfCondition = parseStaticIfCondition();
|
|
break;
|
|
default:
|
|
error(`"version", "debug", or "static" expected`);
|
|
return null;
|
|
}
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses an ConditionalDeclaration
|
|
*
|
|
* $(GRAMMAR )
|
|
*/
|
|
ConditionalDeclaration parseConditionalDeclaration()
|
|
{
|
|
auto node = new ConditionalDeclaration;
|
|
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses an ConditionalStatement
|
|
*
|
|
* $(GRAMMAR )
|
|
*/
|
|
ConditionalStatement parseConditionalStatement()
|
|
{
|
|
auto node = new ConditionalStatement;
|
|
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses an Constraint
|
|
*
|
|
* $(GRAMMAR constraint: 'if' '(' expression ')'
|
|
* ;)
|
|
*/
|
|
Constraint parseConstraint()
|
|
{
|
|
auto node = new Constraint;
|
|
expect(TokenType.if_);
|
|
expect(TokenType.lParen);
|
|
node.expression = parseExpression();
|
|
expect(TokenType.rParen);
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses a Constructor
|
|
*
|
|
* $(GRAMMAR constructor: 'this' parameters functionBody
|
|
* ;)
|
|
*/
|
|
Constructor parseConstructor()
|
|
{
|
|
auto node = new Constructor;
|
|
expect(TokenType.this_);
|
|
node.parameters = parseParameters();
|
|
node.functionBody = parseFunctionBody();
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses an ContinueStatement
|
|
*
|
|
* $(GRAMMAR continueStatement: 'continue' Identifier? ';'
|
|
* ;)
|
|
*/
|
|
ContinueStatement parseContinueStatement()
|
|
{
|
|
expect(TokenType.continue_);
|
|
auto node = new ContinueStatement;
|
|
switch (current().type)
|
|
{
|
|
case TokenType.identifier:
|
|
node.identifier = advance();
|
|
expect(TokenType.semicolon);
|
|
break;
|
|
case TokenType.semicolon:
|
|
advance();
|
|
break;
|
|
default:
|
|
error(`Identifier or semicolon expected following "continue"`);
|
|
return null;
|
|
}
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses an DebugCondition
|
|
*
|
|
* $(GRAMMAR debugCondition: 'debug' ('(' (IntegerLiteral | Identifier) ')')?
|
|
* ;)
|
|
*/
|
|
DebugCondition parseDebugCondition()
|
|
{
|
|
auto node = new DebugCondition;
|
|
expect(TokenType.debug_);
|
|
if (currentIs(TokenType.lParen))
|
|
{
|
|
advance();
|
|
node.hasIdentifierOrInteger = true;
|
|
if (currentIsOneOf(TokenType.intLiteral, TokenType.identifier))
|
|
node.identifierOrInteger = advance();
|
|
else
|
|
{
|
|
error(`Integer literal or identifier expected`);
|
|
return null;
|
|
}
|
|
expect(TokenType.rParen);
|
|
}
|
|
else
|
|
node.hasIdentifierOrInteger = false;
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses a DebugSpecification
|
|
*
|
|
* $(GRAMMAR debugSpecification: 'debug' '=' (Identifier | IntegerLiteral) ';'
|
|
* ;)
|
|
*/
|
|
DebugSpecification parseDebugSpecification()
|
|
{
|
|
auto node = new DebugSpecification;
|
|
expect(TokenType.debug_);
|
|
expect(TokenType.assign);
|
|
if (currentIsOneOf(TokenType.identifier, TokenType.intLiteral))
|
|
node.identifierOrInteger = advance();
|
|
else
|
|
{
|
|
error("Integer literal or identifier expected");
|
|
return null;
|
|
}
|
|
expect(TokenType.semicolon);
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses a Declaration
|
|
*
|
|
* $(GRAMMAR declaration: aliasDeclaration
|
|
* | aliasThisDeclaration
|
|
* | attributedDeclaration
|
|
* | classDeclaration
|
|
* | conditionalDeclaration
|
|
* | constructor
|
|
* | destructor
|
|
* | enumDeclaration
|
|
* | functionDeclaration
|
|
* | importDeclaration
|
|
* | interfaceDeclaration
|
|
* | mixinDeclaration
|
|
* | pragmaDeclaration
|
|
* | sharedStaticConstructor
|
|
* | sharedStaticDestructor
|
|
* | staticAssertDeclaration
|
|
* | staticConstructor
|
|
* | staticDestructor
|
|
* | structDeclaration
|
|
* | templateDeclaration
|
|
* | unionDeclaration
|
|
* | unittest
|
|
* | variableDeclaration
|
|
* ;)
|
|
*/
|
|
Declaration parseDeclaration()
|
|
{
|
|
auto node = new Declaration;
|
|
switch (current().type)
|
|
{
|
|
case TokenType.alias_:
|
|
if (startsWith(TokenType.alias_, TokenType.identifier, TokenType.this_))
|
|
node.aliasThisDeclaration = parseAliasThisDeclaration();
|
|
else
|
|
node.aliasDeclaration = parseAliasDeclaration();
|
|
break;
|
|
case TokenType.class_:
|
|
node.classDeclaration = parseClassDeclaration();
|
|
break;
|
|
case TokenType.this_:
|
|
node.constructor = parseConstructor();
|
|
break;
|
|
case TokenType.tilde:
|
|
node.destructor = parseDestructor();
|
|
break;
|
|
case TokenType.enum_:
|
|
node.enumDeclaration = parseEnumDeclaration();
|
|
break;
|
|
case TokenType.import_:
|
|
node.importDeclaration = parseImportDeclaration();
|
|
break;
|
|
case TokenType.interface_:
|
|
node.interfaceDeclaration = parseInterfaceDeclaration();
|
|
break;
|
|
case TokenType.mixin_:
|
|
node.mixinDeclaration = parseMixinDeclaration();
|
|
break;
|
|
case TokenType.pragma_:
|
|
node.pragmaDeclaration = parsePragmaDeclaration();
|
|
break;
|
|
case TokenType.shared_:
|
|
// TODO:
|
|
// sharedStaticConstructor shared static this
|
|
// sharedStaticDestructor shared static ~ this
|
|
// attributedDeclaration shared anything else
|
|
break;
|
|
case TokenType.static_:
|
|
// TODO:
|
|
// staticConstructor static this
|
|
// staticDestructor static ~
|
|
// attributedDeclaration static anything else
|
|
// conditionalDeclaration static if
|
|
break;
|
|
case TokenType.struct_:
|
|
node.structDeclaration = parseStructDeclaration();
|
|
break;
|
|
case TokenType.template_:
|
|
node.templateDeclaration = parseTemplateDeclaration();
|
|
break;
|
|
case TokenType.union_:
|
|
node.unionDeclaration = parseUnionDeclaration();
|
|
break;
|
|
case TokenType.unittest_:
|
|
node.unittest_ = parseUnittest();
|
|
break;
|
|
case TokenType.identifier:
|
|
// TODO:
|
|
// variableDeclaration
|
|
// functionDeclaration
|
|
break;
|
|
case TokenType.version_:
|
|
case TokenType.debug_:
|
|
node.conditionalDeclaration = parseConditionalDeclaration();
|
|
break;
|
|
default:
|
|
error("Declaration expected");
|
|
return null;
|
|
}
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses an DeclarationsAndStatements
|
|
*
|
|
* $(GRAMMAR )
|
|
*/
|
|
DeclarationsAndStatements parseDeclarationsAndStatements()
|
|
{
|
|
auto node = new DeclarationsAndStatements;
|
|
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses a DeclarationOrInvariant
|
|
*
|
|
* $(GRAMMAR declarationOrInvariant : declaration
|
|
* | invariant
|
|
* ;)
|
|
*/
|
|
DeclarationOrInvariant parseDeclarationOrInvariant()
|
|
{
|
|
auto node = new DeclarationOrInvariant;
|
|
if (currentIs(TokenType.invariant_))
|
|
node.invariant_ = parseInvariant();
|
|
else
|
|
node.declaration = parseDeclaration();
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses a Declarator
|
|
*
|
|
* $(GRAMMAR declarator: Identifier declaratorSuffix? ('=' initializer)?
|
|
* ;)
|
|
*/
|
|
Declarator parseDeclarator()
|
|
{
|
|
auto node = new Declarator;
|
|
node.identifier = *expect(TokenType.identifier);
|
|
if (currentIs(TokenType.lBracket))
|
|
node.declaratorSuffix = parseDeclaratorSuffix();
|
|
if (currentIs(TokenType.assign))
|
|
{
|
|
advance();
|
|
node.initializer = parseInitializer();
|
|
}
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses an DeclaratorSuffix
|
|
*
|
|
* $(GRAMMAR )
|
|
*/
|
|
DeclaratorSuffix parseDeclaratorSuffix()
|
|
{
|
|
auto node = new DeclaratorSuffix;
|
|
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses an DefaultStatement
|
|
*
|
|
* $(GRAMMAR )
|
|
*/
|
|
DefaultStatement parseDefaultStatement()
|
|
{
|
|
auto node = new DefaultStatement;
|
|
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses an DeleteExpression
|
|
*
|
|
* $(GRAMMAR )
|
|
*/
|
|
DeleteExpression parseDeleteExpression()
|
|
{
|
|
auto node = new DeleteExpression;
|
|
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses an DeleteStatement
|
|
*
|
|
* $(GRAMMAR )
|
|
*/
|
|
DeleteStatement parseDeleteStatement()
|
|
{
|
|
auto node = new DeleteStatement;
|
|
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses a Deprecated attribute
|
|
*
|
|
* $(GRAMMAR deprecated: 'deprecated' ('(' assignExpression ')')?
|
|
* ;)
|
|
*/
|
|
Deprecated parseDeprecated()
|
|
{
|
|
auto node = new Deprecated;
|
|
expect(TokenType.deprecated_);
|
|
if (currentIs(TokenType.lParen))
|
|
{
|
|
advance();
|
|
node.assignExpression = parseAssignExpression();
|
|
expect(TokenType.rParen);
|
|
}
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses a Destructor
|
|
*
|
|
* $(GRAMMAR destructor: '~' 'this' '(' ')' functionBody
|
|
* ;)
|
|
*/
|
|
Destructor parseDestructor()
|
|
{
|
|
auto node = new Destructor;
|
|
expect(TokenType.tilde);
|
|
expect(TokenType.this_);
|
|
expect(TokenType.lParen);
|
|
expect(TokenType.rParen);
|
|
node.functionBody = parseFunctionBody();
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses an DoStatement
|
|
*
|
|
* $(GRAMMAR )
|
|
*/
|
|
DoStatement parseDoStatement()
|
|
{
|
|
auto node = new DoStatement;
|
|
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses an EnumBody
|
|
*
|
|
* $(GRAMMAR )
|
|
*/
|
|
EnumBody parseEnumBody()
|
|
{
|
|
auto node = new EnumBody;
|
|
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses an EnumDeclaration
|
|
*
|
|
* $(GRAMMAR )
|
|
*/
|
|
EnumDeclaration parseEnumDeclaration()
|
|
{
|
|
auto node = new EnumDeclaration;
|
|
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses an EnumMember
|
|
*
|
|
* $(GRAMMAR )
|
|
*/
|
|
EnumMember parseEnumMember()
|
|
{
|
|
auto node = new EnumMember;
|
|
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses an EqualExpression
|
|
*
|
|
* $(GRAMMAR )
|
|
*/
|
|
EqualExpression parseEqualExpression()
|
|
{
|
|
auto node = new EqualExpression;
|
|
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses an Expression
|
|
*
|
|
* $(GRAMMAR )
|
|
*/
|
|
Expression parseExpression()
|
|
{
|
|
auto node = new Expression;
|
|
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses an FinalSwitchStatement
|
|
*
|
|
* $(GRAMMAR )
|
|
*/
|
|
FinalSwitchStatement parseFinalSwitchStatement()
|
|
{
|
|
auto node = new FinalSwitchStatement;
|
|
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses an Finally
|
|
*
|
|
* $(GRAMMAR )
|
|
*/
|
|
Finally parseFinally()
|
|
{
|
|
auto node = new Finally;
|
|
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses an ForStatement
|
|
*
|
|
* $(GRAMMAR )
|
|
*/
|
|
ForStatement parseForStatement()
|
|
{
|
|
auto node = new ForStatement;
|
|
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses an ForeachRangeStatement
|
|
*
|
|
* $(GRAMMAR )
|
|
*/
|
|
ForeachRangeStatement parseForeachRangeStatement()
|
|
{
|
|
auto node = new ForeachRangeStatement;
|
|
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses an ForeachStatement
|
|
*
|
|
* $(GRAMMAR )
|
|
*/
|
|
ForeachStatement parseForeachStatement()
|
|
{
|
|
auto node = new ForeachStatement;
|
|
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses an ForeachType
|
|
*
|
|
* $(GRAMMAR )
|
|
*/
|
|
ForeachType parseForeachType()
|
|
{
|
|
auto node = new ForeachType;
|
|
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses an ForeachTypeList
|
|
*
|
|
* $(GRAMMAR )
|
|
*/
|
|
ForeachTypeList parseForeachTypeList()
|
|
{
|
|
auto node = new ForeachTypeList;
|
|
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses an FunctionAttribute
|
|
*
|
|
* $(GRAMMAR )
|
|
*/
|
|
FunctionAttribute parseFunctionAttribute()
|
|
{
|
|
auto node = new FunctionAttribute;
|
|
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses an FunctionBody
|
|
*
|
|
* $(GRAMMAR )
|
|
*/
|
|
FunctionBody parseFunctionBody()
|
|
{
|
|
auto node = new FunctionBody;
|
|
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses an FunctionCallExpression
|
|
*
|
|
* $(GRAMMAR )
|
|
*/
|
|
FunctionCallExpression parseFunctionCallExpression()
|
|
{
|
|
auto node = new FunctionCallExpression;
|
|
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses an FunctionCallStatement
|
|
*
|
|
* $(GRAMMAR )
|
|
*/
|
|
FunctionCallStatement parseFunctionCallStatement()
|
|
{
|
|
auto node = new FunctionCallStatement;
|
|
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses an FunctionDeclaration
|
|
*
|
|
* $(GRAMMAR )
|
|
*/
|
|
FunctionDeclaration parseFunctionDeclaration()
|
|
{
|
|
auto node = new FunctionDeclaration;
|
|
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses an FunctionLiteralExpression
|
|
*
|
|
* $(GRAMMAR )
|
|
*/
|
|
FunctionLiteralExpression parseFunctionLiteralExpression()
|
|
{
|
|
auto node = new FunctionLiteralExpression;
|
|
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses an GotoStatement
|
|
*
|
|
* $(GRAMMAR )
|
|
*/
|
|
GotoStatement parseGotoStatement()
|
|
{
|
|
auto node = new GotoStatement;
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses an IdentifierChain
|
|
*
|
|
* $(GRAMMAR identifierChain: Identifier ('.' Identifier)*
|
|
* ;)
|
|
*/
|
|
IdentifierChain parseIdentifierChain()
|
|
{
|
|
auto node = new IdentifierChain;
|
|
while (true)
|
|
{
|
|
node.identifiers ~= *expect(TokenType.identifier);
|
|
if (currentIs(TokenType.dot))
|
|
{
|
|
advance();
|
|
continue;
|
|
}
|
|
else
|
|
break;
|
|
}
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses an IdentifierList
|
|
*
|
|
* $(GRAMMAR identifierList: Identifier (',' Identifier)*
|
|
* ;)
|
|
*/
|
|
IdentifierList parseIdentifierList()
|
|
{
|
|
auto node = new IdentifierList;
|
|
while (true)
|
|
{
|
|
node.identifiers ~= *expect(TokenType.identifier);
|
|
if (currentIs(TokenType.comma))
|
|
{
|
|
advance();
|
|
continue;
|
|
}
|
|
else
|
|
break;
|
|
}
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses an IdentifierOrTemplateChain
|
|
*
|
|
* $(GRAMMAR )
|
|
*/
|
|
IdentifierOrTemplateChain parseIdentifierOrTemplateChain()
|
|
{
|
|
auto node = new IdentifierOrTemplateChain;
|
|
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses an IdentifierOrTemplateInstance
|
|
*
|
|
* $(GRAMMAR )
|
|
*/
|
|
IdentifierOrTemplateInstance parseIdentifierOrTemplateInstance()
|
|
{
|
|
auto node = new IdentifierOrTemplateInstance;
|
|
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses an IdentityExpression
|
|
*
|
|
* $(GRAMMAR )
|
|
*/
|
|
IdentityExpression parseIdentityExpression()
|
|
{
|
|
auto node = new IdentityExpression;
|
|
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses an IfStatement
|
|
*
|
|
* $(GRAMMAR )
|
|
*/
|
|
IfStatement parseIfStatement()
|
|
{
|
|
auto node = new IfStatement;
|
|
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses an ImportBind
|
|
*
|
|
* $(GRAMMAR )
|
|
*/
|
|
ImportBind parseImportBind()
|
|
{
|
|
auto node = new ImportBind;
|
|
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses an ImportBindings
|
|
*
|
|
* $(GRAMMAR )
|
|
*/
|
|
ImportBindings parseImportBindings()
|
|
{
|
|
auto node = new ImportBindings;
|
|
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses an ImportDeclaration
|
|
*
|
|
* $(GRAMMAR )
|
|
*/
|
|
ImportDeclaration parseImportDeclaration()()
|
|
{
|
|
auto node = new ImportDeclaration;
|
|
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses an ImportExpression
|
|
*
|
|
* $(GRAMMAR )
|
|
*/
|
|
ImportExpression parseImportExpression()
|
|
{
|
|
auto node = new ImportExpression;
|
|
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses an ImportList
|
|
*
|
|
* $(GRAMMAR )
|
|
*/
|
|
ImportList parseImportList()
|
|
{
|
|
auto node = new ImportList;
|
|
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses an InExpression
|
|
*
|
|
* $(GRAMMAR )
|
|
*/
|
|
InExpression parseInExpression()
|
|
{
|
|
auto node = new InExpression;
|
|
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses an InStatement
|
|
*
|
|
* $(GRAMMAR )
|
|
*/
|
|
InStatement parseInStatement()
|
|
{
|
|
auto node = new InStatement;
|
|
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses an Initialize
|
|
*
|
|
* $(GRAMMAR )
|
|
*/
|
|
Initialize parseInitialize()
|
|
{
|
|
auto node = new Initialize;
|
|
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses an Initializer
|
|
*
|
|
* $(GRAMMAR )
|
|
*/
|
|
Initializer parseInitializer()
|
|
{
|
|
auto node = new Initializer;
|
|
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses an InterfaceDeclaration
|
|
*
|
|
* $(GRAMMAR )
|
|
*/
|
|
InterfaceDeclaration parseInterfaceDeclaration()
|
|
{
|
|
auto node = new InterfaceDeclaration;
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses an Invariant
|
|
*
|
|
* $(GRAMMAR )
|
|
*/
|
|
Invariant parseInvariant()
|
|
{
|
|
auto node = new Invariant;
|
|
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses an IsExpression
|
|
*
|
|
* $(GRAMMAR )
|
|
*/
|
|
IsExpression parseIsExpression()
|
|
{
|
|
auto node = new IsExpression;
|
|
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses an KeyValuePair
|
|
*
|
|
* $(GRAMMAR )
|
|
*/
|
|
KeyValuePair parseKeyValuePair()
|
|
{
|
|
auto node = new KeyValuePair;
|
|
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses an KeyValuePairs
|
|
*
|
|
* $(GRAMMAR )
|
|
*/
|
|
KeyValuePairs parseKeyValuePairs()
|
|
{
|
|
auto node = new KeyValuePairs;
|
|
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses an LabeledStatement
|
|
*
|
|
* $(GRAMMAR )
|
|
*/
|
|
LabeledStatement parseLabeledStatement()
|
|
{
|
|
auto node = new LabeledStatement;
|
|
node.identifier = *expect(TokenType.identifier);
|
|
expect(TokenType.colon);
|
|
node.statement = parseStatement();
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses an LambdaExpression
|
|
*
|
|
* $(GRAMMAR )
|
|
*/
|
|
LambdaExpression parseLambdaExpression()
|
|
{
|
|
auto node = new LambdaExpression;
|
|
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses an LastCatch
|
|
*
|
|
* $(GRAMMAR )
|
|
*/
|
|
LastCatch parseLastCatch()
|
|
{
|
|
auto node = new LastCatch;
|
|
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses an LinkageAttribute
|
|
*
|
|
* $(GRAMMAR linkageAttribute: 'extern' '(' Identifier '++'? ')'
|
|
* ;)
|
|
*/
|
|
LinkageAttribute parseLinkageAttribute()
|
|
{
|
|
auto node = new LinkageAttribute;
|
|
expect(TokenType.extern_);
|
|
expect(TokenType.lParen);
|
|
node.identifier = *expect(TokenType.identifier);
|
|
if (currentIs(TokenType.increment))
|
|
{
|
|
advance();
|
|
node.hasPlusPlus = true;
|
|
}
|
|
expect(TokenType.rParen);
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses an MemberFunctionAttribute
|
|
*
|
|
* $(GRAMMAR )
|
|
*/
|
|
MemberFunctionAttribute parseMemberFunctionAttribute()
|
|
{
|
|
auto node = new MemberFunctionAttribute;
|
|
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses an MixinDeclaration
|
|
*
|
|
* $(GRAMMAR mixinDeclaration: mixinExpression ';'
|
|
* ;)
|
|
*/
|
|
MixinDeclaration parseMixinDeclaration()
|
|
{
|
|
auto node = new MixinDeclaration;
|
|
node.mixinExpression = parseMixinExpression();
|
|
expect(TokenType.semicolon);
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses an MixinExpression
|
|
*
|
|
* $(GRAMMAR )
|
|
*/
|
|
MixinExpression parseMixinExpression()
|
|
{
|
|
auto node = new MixinExpression;
|
|
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses an MixinTemplateName
|
|
*
|
|
* $(GRAMMAR )
|
|
*/
|
|
MixinTemplateName parseMixinTemplateName()
|
|
{
|
|
auto node = new MixinTemplateName;
|
|
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses a Module
|
|
*
|
|
* $(GRAMMAR module: moduleDeclaration? declaration*
|
|
* ;)
|
|
*/
|
|
Module parseModule()
|
|
{
|
|
Module m = new Module;
|
|
while (index < tokens.length)
|
|
{
|
|
switch (tokens[index].type)
|
|
{
|
|
case TokenType.module_:
|
|
if (m.moduleDeclaration is null)
|
|
m.moduleDeclaration = parseModuleDeclaration();
|
|
else
|
|
error("Only one module declaration is allowed per module");
|
|
break;
|
|
default:
|
|
m.declarations ~= parseDeclaration();
|
|
}
|
|
}
|
|
return m;
|
|
}
|
|
|
|
/**
|
|
* Parses a ModuleDeclaration
|
|
*
|
|
* $(GRAMMAR moduleDeclaration: 'module' identifierChain ';'
|
|
* ;)
|
|
*/
|
|
ModuleDeclaration parseModuleDeclaration()
|
|
{
|
|
auto node = new ModuleDeclaration;
|
|
expect(TokenType.module_);
|
|
node.moduleName = parseIdentifierChain();
|
|
expect(TokenType.semicolon);
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses a MulExpression
|
|
* $(GRAMMAR mulExpression: unaryExpression
|
|
* | mulExpression ('*' | '/' | '%') unaryExpression
|
|
* ;)
|
|
*/
|
|
MulExpression parseMulExpression()
|
|
{
|
|
auto node = new MulExpression;
|
|
auto left = parseUnaryExpression();
|
|
if (tokens[index] == TokenType.star || tokens[index] == TokenType.div)
|
|
{
|
|
node.operator = tokens[index++];
|
|
node.right = parseUnaryExpression();
|
|
}
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses an NewAnonClassExpression
|
|
*
|
|
* $(GRAMMAR )
|
|
*/
|
|
NewAnonClassExpression parseNewAnonClassExpression()
|
|
{
|
|
auto node = new NewAnonClassExpression;
|
|
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses an NewExpression
|
|
*
|
|
* $(GRAMMAR )
|
|
*/
|
|
NewExpression parseNewExpression()
|
|
{
|
|
auto node = new NewExpression;
|
|
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses an NonEmptyStatement
|
|
*
|
|
* $(GRAMMAR )
|
|
*/
|
|
NonEmptyStatement parseNonEmptyStatement()
|
|
{
|
|
auto node = new NonEmptyStatement;
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses an NonEmptyStatementNoCaseNoDefault
|
|
*
|
|
* $(GRAMMAR )
|
|
*/
|
|
NonEmptyStatementNoCaseNoDefault parseNonEmptyStatementNoCaseNoDefault()
|
|
{
|
|
auto node = new NonEmptyStatementNoCaseNoDefault;
|
|
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses an NonVoidInitializer
|
|
*
|
|
* $(GRAMMAR )
|
|
*/
|
|
NonVoidInitializer parseNonVoidInitializer()
|
|
{
|
|
auto node = new NonVoidInitializer;
|
|
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses an Opcode
|
|
*
|
|
* $(GRAMMAR )
|
|
*/
|
|
Opcode parseOpcode()
|
|
{
|
|
auto node = new Opcode;
|
|
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses an Operand
|
|
*
|
|
* $(GRAMMAR )
|
|
*/
|
|
Operand parseOperand()
|
|
{
|
|
auto node = new Operand;
|
|
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses an Operands
|
|
*
|
|
* $(GRAMMAR )
|
|
*/
|
|
Operands parseOperands()
|
|
{
|
|
auto node = new Operands;
|
|
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses an OrExpression
|
|
*
|
|
* $(GRAMMAR )
|
|
*/
|
|
OrExpression parseOrExpression()
|
|
{
|
|
auto node = new OrExpression;
|
|
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses an OrOrExpression
|
|
*
|
|
* $(GRAMMAR )
|
|
*/
|
|
OrOrExpression parseOrOrExpression()
|
|
{
|
|
auto node = new OrOrExpression;
|
|
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses an OutStatement
|
|
*
|
|
* $(GRAMMAR )
|
|
*/
|
|
OutStatement parseOutStatement()
|
|
{
|
|
auto node = new OutStatement;
|
|
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses an Parameter
|
|
*
|
|
* $(GRAMMAR )
|
|
*/
|
|
Parameter parseParameter()
|
|
{
|
|
auto node = new Parameter;
|
|
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses an ParameterAttribute
|
|
*
|
|
* $(GRAMMAR )
|
|
*/
|
|
ParameterAttribute parseParameterAttribute()
|
|
{
|
|
auto node = new ParameterAttribute;
|
|
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses an Parameters
|
|
*
|
|
* $(GRAMMAR )
|
|
*/
|
|
Parameters parseParameters()
|
|
{
|
|
auto node = new Parameters;
|
|
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses an PostIncDecExpression
|
|
*
|
|
* $(GRAMMAR )
|
|
*/
|
|
PostIncDecExpression parsePostIncDecExpression()
|
|
{
|
|
auto node = new PostIncDecExpression;
|
|
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses an PowExpression
|
|
*
|
|
* $(GRAMMAR )
|
|
*/
|
|
PowExpression parsePowExpression()
|
|
{
|
|
auto node = new PowExpression;
|
|
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses an PragmaDeclaration
|
|
*
|
|
* $(GRAMMAR )
|
|
*/
|
|
PragmaDeclaration parsePragmaDeclaration()
|
|
{
|
|
auto node = new PragmaDeclaration;
|
|
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses an PragmaExpression
|
|
*
|
|
* $(GRAMMAR )
|
|
*/
|
|
PragmaExpression parsePragmaExpression()
|
|
{
|
|
auto node = new PragmaExpression;
|
|
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses an PreIncDecExpression
|
|
*
|
|
* $(GRAMMAR )
|
|
*/
|
|
PreIncDecExpression parsePreIncDecExpression()
|
|
{
|
|
auto node = new PreIncDecExpression;
|
|
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses an PrimaryExpression
|
|
*
|
|
* $(GRAMMAR )
|
|
*/
|
|
PrimaryExpression parsePrimaryExpression()
|
|
{
|
|
auto node = new PrimaryExpression;
|
|
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses an ProtectionAttribute
|
|
*
|
|
* $(GRAMMAR )
|
|
*/
|
|
ProtectionAttribute parseProtectionAttribute()
|
|
{
|
|
auto node = new ProtectionAttribute;
|
|
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses an Register
|
|
*
|
|
* $(GRAMMAR )
|
|
*/
|
|
Register parseRegister()
|
|
{
|
|
auto node = new Register;
|
|
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses an RelExpression
|
|
*
|
|
* $(GRAMMAR )
|
|
*/
|
|
RelExpression parseRelExpression()
|
|
{
|
|
auto node = new RelExpression;
|
|
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses an ReturnStatement
|
|
*
|
|
* $(GRAMMAR )
|
|
*/
|
|
ReturnStatement parseReturnStatement()
|
|
{
|
|
auto node = new ReturnStatement;
|
|
expect(TokenType.return_);
|
|
if (tokens[index] != TokenType.semicolon)
|
|
node.expression = parseExpression();
|
|
expect(TokenType.semicolon);
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses an ScopeGuardStatement
|
|
*
|
|
* $(GRAMMAR )
|
|
*/
|
|
ScopeGuardStatement parseScopeGuardStatement()
|
|
{
|
|
auto node = new ScopeGuardStatement;
|
|
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses an SharedStaticConstructor
|
|
*
|
|
* $(GRAMMAR )
|
|
*/
|
|
SharedStaticConstructor parseSharedStaticConstructor()
|
|
{
|
|
auto node = new SharedStaticConstructor;
|
|
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses an SharedStaticDestructor
|
|
*
|
|
* $(GRAMMAR )
|
|
*/
|
|
SharedStaticDestructor parseSharedStaticDestructor()
|
|
{
|
|
auto node = new SharedStaticDestructor;
|
|
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses an ShiftExpression
|
|
*
|
|
* $(GRAMMAR )
|
|
*/
|
|
ShiftExpression parseShiftExpression()
|
|
{
|
|
auto node = new ShiftExpression;
|
|
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses an SingleImport
|
|
*
|
|
* $(GRAMMAR )
|
|
*/
|
|
SingleImport parseSingleImport()
|
|
{
|
|
auto node = new SingleImport;
|
|
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses a Statement
|
|
*
|
|
* $(GRAMMAR statement: ';'
|
|
* | nonEmptyStatement
|
|
* ;)
|
|
*/
|
|
Statement parseStatement()
|
|
{
|
|
auto node = new Statement;
|
|
if (currentIs(TokenType.semicolon))
|
|
advance();
|
|
else
|
|
node.nonEmptyStatement = parseNonEmptyStatement();
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses an StatementNoCaseNoDefault
|
|
*
|
|
* $(GRAMMAR )
|
|
*/
|
|
StatementNoCaseNoDefault parseStatementNoCaseNoDefault()
|
|
{
|
|
auto node = new StatementNoCaseNoDefault;
|
|
if (tokens[index] != TokenType.semicolon)
|
|
node.nonEmptyStatementNoCaseNoDefault = parseNonEmptyStatementNoCaseNoDefault();
|
|
else
|
|
expect(TokenType.semicolon);
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses an StaticAssertDeclaration
|
|
*
|
|
* $(GRAMMAR )
|
|
*/
|
|
StaticAssertDeclaration parseStaticAssertDeclaration()
|
|
{
|
|
auto node = new StaticAssertDeclaration;
|
|
node.staticAssertStatement = parseStaticAssertStatement();
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses an StaticAssertStatement
|
|
*
|
|
* $(GRAMMAR )
|
|
*/
|
|
StaticAssertStatement parseStaticAssertStatement()
|
|
{
|
|
auto node = new StaticAssertStatement;
|
|
expect(TokenType.static_);
|
|
node.assertStatement = parseAssertStatement();
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses an StaticConstructor
|
|
*
|
|
* $(GRAMMAR )
|
|
*/
|
|
StaticConstructor parseStaticConstructor()
|
|
{
|
|
auto node = new StaticConstructor;
|
|
expect(TokenType.static_);
|
|
expect(TokenType.this_);
|
|
expect(TokenType.lParen);
|
|
expect(TokenType.rParen);
|
|
node.functionBody = parseFunctionBody();
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses an StaticDestructor
|
|
*
|
|
* $(GRAMMAR )
|
|
*/
|
|
StaticDestructor parseStaticDestructor()
|
|
{
|
|
auto node = new StaticDestructor;
|
|
expect(TokenType.static_);
|
|
expect(TokenType.tilde);
|
|
expect(TokenType.this_);
|
|
expect(TokenType.lParen);
|
|
expect(TokenType.rParen);
|
|
node.functionBody = parseFunctionBody();
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses an StaticIfCondition
|
|
*
|
|
* $(GRAMMAR )
|
|
*/
|
|
StaticIfCondition parseStaticIfCondition()
|
|
{
|
|
auto node = new StaticIfCondition;
|
|
expect(TokenType.static_);
|
|
expect(TokenType.if_);
|
|
expect(TokenType.lParen);
|
|
node.assignExpression = parseAssignExpression();
|
|
expect(TokenType.rParen);
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses an StorageClass
|
|
*
|
|
* $(GRAMMAR )
|
|
*/
|
|
StorageClass parseStorageClass()
|
|
{
|
|
auto node = new StorageClass;
|
|
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses an StructBody
|
|
*
|
|
* $(GRAMMAR )
|
|
*/
|
|
StructBody parseStructBody()
|
|
{
|
|
auto node = new StructBody;
|
|
expect(TokenType.lBrace);
|
|
while (tokens[index] != TokenType.rBrace && moreTokens())
|
|
node.declarations ~= parseDeclaration();
|
|
expect(TokenType.rBrace);
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses an StructDeclaration
|
|
*
|
|
* $(GRAMMAR structDeclaration: 'struct' Identifier (templateParameters constraint? structBody | (structBody | ';'))
|
|
* ;)
|
|
*/
|
|
StructDeclaration parseStructDeclaration()
|
|
{
|
|
auto node = new StructDeclaration;
|
|
expect(TokenType.struct_);
|
|
node.identifier = *expect(TokenType.identifier);
|
|
if (currentIs(TokenType.lParen))
|
|
{
|
|
node.templateParameters = parseTemplateParameters();
|
|
if (tokens[index] == TokenType.if_)
|
|
node.constraint = parseConstraint();
|
|
node.structBody = parseStructBody();
|
|
}
|
|
else if (currentIs(TokenType.lBrace))
|
|
{
|
|
node.structBody = parseStructBody();
|
|
}
|
|
else if (currentIs(TokenType.semicolon))
|
|
advance();
|
|
else
|
|
{
|
|
error("Template Parameters, Struct Body, or Semicolon expected");
|
|
return null;
|
|
}
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses an StructInitializer
|
|
*
|
|
* $(GRAMMAR )
|
|
*/
|
|
StructInitializer parseStructInitializer()
|
|
{
|
|
auto node = new StructInitializer;
|
|
expect(TokenType.lBrace);
|
|
node.structMemberInitializers = parseStructMemberInitializers();
|
|
expect(TokenType.rBrace);
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses an StructMemberInitializer
|
|
*
|
|
* $(GRAMMAR )
|
|
*/
|
|
StructMemberInitializer parseStructMemberInitializer()
|
|
{
|
|
auto node = new StructMemberInitializer;
|
|
if (startsWith(TokenType.identifier, TokenType.colon))
|
|
{
|
|
node.identifier = tokens[index++];
|
|
index++;
|
|
}
|
|
node.nonVoidInitializer = parseNonVoidInitializer();
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses an StructMemberInitializers
|
|
*
|
|
* $(GRAMMAR )
|
|
*/
|
|
StructMemberInitializers parseStructMemberInitializers()
|
|
{
|
|
auto node = new StructMemberInitializers;
|
|
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses an SwitchBody
|
|
*
|
|
* $(GRAMMAR )
|
|
*/
|
|
SwitchBody parseSwitchBody()
|
|
{
|
|
auto node = new SwitchBody;
|
|
expect(TokenType.lBrace);
|
|
while (moreTokens() && tokens[index] != TokenType.rBrace)
|
|
node.statements ~= parseStatement();
|
|
expect(TokenType.rBrace);
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses an SwitchStatement
|
|
*
|
|
* $(GRAMMAR )
|
|
*/
|
|
SwitchStatement parseSwitchStatement()
|
|
{
|
|
auto node = new SwitchStatement;
|
|
expect(TokenType.switch_);
|
|
expect(TokenType.lParen);
|
|
node.expression = parseExpression();
|
|
expect(TokenType.rParen);
|
|
node.switchBody = parseSwitchBody();
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses an Symbol
|
|
*
|
|
* $(GRAMMAR )
|
|
*/
|
|
Symbol parseSymbol()
|
|
{
|
|
auto node = new Symbol;
|
|
if (tokens[index] == TokenType.dot)
|
|
{
|
|
node.hasDot = true;
|
|
++index;
|
|
}
|
|
node.identifierOrTemplateChain = parseIdentifierOrTemplateChain();
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses an SynchronizedStatement
|
|
*
|
|
* $(GRAMMAR )
|
|
*/
|
|
SynchronizedStatement parseSynchronizedStatement()
|
|
{
|
|
auto node = new SynchronizedStatement;
|
|
expect(TokenType.synchronized_);
|
|
if (tokens[index] == TokenType.lParen)
|
|
{
|
|
expect(TokenType.lParen);
|
|
node.expression = parseExpression();
|
|
expect(TokenType.rParen);
|
|
}
|
|
node.nonEmptyStatementNoCaseNoDefault = parseNonEmptyStatementNoCaseNoDefault();
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses an TemplateAliasParameter
|
|
*
|
|
* $(GRAMMAR )
|
|
*/
|
|
TemplateAliasParameter parseTemplateAliasParameter()
|
|
{
|
|
auto node = new TemplateAliasParameter;
|
|
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses an TemplateArgument
|
|
*
|
|
* $(GRAMMAR )
|
|
*/
|
|
TemplateArgument parseTemplateArgument()
|
|
{
|
|
auto node = new TemplateArgument;
|
|
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses an TemplateArgumentList
|
|
*
|
|
* $(GRAMMAR )
|
|
*/
|
|
TemplateArgumentList parseTemplateArgumentList()
|
|
{
|
|
auto node = new TemplateArgumentList;
|
|
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses an TemplateArguments
|
|
*
|
|
* $(GRAMMAR )
|
|
*/
|
|
TemplateArguments parseTemplateArguments()
|
|
{
|
|
auto node = new TemplateArguments;
|
|
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses an TemplateDeclaration
|
|
*
|
|
* $(GRAMMAR )
|
|
*/
|
|
TemplateDeclaration parseTemplateDeclaration()
|
|
{
|
|
auto node = new TemplateDeclaration;
|
|
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses an TemplateInstance
|
|
*
|
|
* $(GRAMMAR )
|
|
*/
|
|
TemplateInstance parseTemplateInstance()
|
|
{
|
|
auto node = new TemplateInstance;
|
|
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses an TemplateMixinStatement
|
|
*
|
|
* $(GRAMMAR )
|
|
*/
|
|
TemplateMixinStatement parseTemplateMixinStatement()
|
|
{
|
|
auto node = new TemplateMixinStatement;
|
|
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses an TemplateParameter
|
|
*
|
|
* $(GRAMMAR )
|
|
*/
|
|
TemplateParameter parseTemplateParameter()
|
|
{
|
|
auto node = new TemplateParameter;
|
|
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses an TemplateParameterList
|
|
*
|
|
* $(GRAMMAR )
|
|
*/
|
|
TemplateParameterList parseTemplateParameterList()
|
|
{
|
|
auto node = new TemplateParameterList;
|
|
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses an TemplateParameters
|
|
*
|
|
* $(GRAMMAR )
|
|
*/
|
|
TemplateParameters parseTemplateParameters()
|
|
{
|
|
auto node = new TemplateParameters;
|
|
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses an TemplateSingleArgument
|
|
*
|
|
* $(GRAMMAR )
|
|
*/
|
|
TemplateSingleArgument parseTemplateSingleArgument()
|
|
{
|
|
auto node = new TemplateSingleArgument;
|
|
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses an TemplateThisParameter
|
|
*
|
|
* $(GRAMMAR )
|
|
*/
|
|
TemplateThisParameter parseTemplateThisParameter()
|
|
{
|
|
auto node = new TemplateThisParameter;
|
|
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses an TemplateTupleParameter
|
|
*
|
|
* $(GRAMMAR )
|
|
*/
|
|
TemplateTupleParameter parseTemplateTupleParameter()
|
|
{
|
|
auto node = new TemplateTupleParameter;
|
|
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses an TemplateTypeParameter
|
|
*
|
|
* $(GRAMMAR )
|
|
*/
|
|
TemplateTypeParameter parseTemplateTypeParameter()
|
|
{
|
|
auto node = new TemplateTypeParameter;
|
|
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses an TemplateValueParameter
|
|
*
|
|
* $(GRAMMAR )
|
|
*/
|
|
TemplateValueParameter parseTemplateValueParameter()
|
|
{
|
|
auto node = new TemplateValueParameter;
|
|
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses an TemplateValueParameterDefault
|
|
*
|
|
* $(GRAMMAR )
|
|
*/
|
|
TemplateValueParameterDefault parseTemplateValueParameterDefault()
|
|
{
|
|
auto node = new TemplateValueParameterDefault;
|
|
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses an TernaryExpression
|
|
*
|
|
* $(GRAMMAR )
|
|
*/
|
|
TernaryExpression parseTernaryExpression()
|
|
{
|
|
auto node = new TernaryExpression;
|
|
node.orOrExpression = parseOrOrExpression();
|
|
if (tokens[index] == TokenType.ternary)
|
|
{
|
|
++index;
|
|
node.expression = parseExpression();
|
|
expect(TokenType.colon);
|
|
node.ternaryExpression = parseTernaryExpression();
|
|
}
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses an ThrowStatement
|
|
*
|
|
* $(GRAMMAR )
|
|
*/
|
|
ThrowStatement parseThrowStatement()
|
|
{
|
|
auto node = new ThrowStatement;
|
|
expect(TokenType.throw_);
|
|
node.expression = parseExpression();
|
|
expect(TokenType.semicolon);
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses an TraitsArgument
|
|
*
|
|
* $(GRAMMAR )
|
|
*/
|
|
TraitsArgument parseTraitsArgument()
|
|
{
|
|
auto node = new TraitsArgument;
|
|
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses an TraitsExpression
|
|
*
|
|
* $(GRAMMAR )
|
|
*/
|
|
TraitsExpression parseTraitsExpression()
|
|
{
|
|
auto node = new TraitsExpression;
|
|
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses an TryStatement
|
|
*
|
|
* $(GRAMMAR )
|
|
*/
|
|
TryStatement parseTryStatement()
|
|
{
|
|
auto node = new TryStatement;
|
|
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses an Type
|
|
*
|
|
* $(GRAMMAR )
|
|
*/
|
|
Type parseType()
|
|
{
|
|
auto node = new Type;
|
|
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses an Type2
|
|
*
|
|
* $(GRAMMAR )
|
|
*/
|
|
Type2 parseType2()
|
|
{
|
|
auto node = new Type2;
|
|
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses an Type3
|
|
*
|
|
* $(GRAMMAR )
|
|
*/
|
|
Type3 parseType3()
|
|
{
|
|
auto node = new Type3;
|
|
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses an TypeConstructor
|
|
*
|
|
* $(GRAMMAR )
|
|
*/
|
|
TypeConstructor parseTypeConstructor()
|
|
{
|
|
auto node = new TypeConstructor;
|
|
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses an TypeConstructors
|
|
*
|
|
* $(GRAMMAR )
|
|
*/
|
|
TypeConstructors parseTypeConstructors()
|
|
{
|
|
auto node = new TypeConstructors;
|
|
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses an TypeSpecialization
|
|
*
|
|
* $(GRAMMAR )
|
|
*/
|
|
TypeSpecialization parseTypeSpecialization()
|
|
{
|
|
auto node = new TypeSpecialization;
|
|
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses an TypeSuffix
|
|
*
|
|
* $(GRAMMAR )
|
|
*/
|
|
TypeSuffix parseTypeSuffix()
|
|
{
|
|
auto node = new TypeSuffix;
|
|
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses an TypeidExpression
|
|
*
|
|
* $(GRAMMAR )
|
|
*/
|
|
TypeidExpression parseTypeidExpression()
|
|
{
|
|
auto node = new TypeidExpression;
|
|
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses an TypeofExpression
|
|
*
|
|
* $(GRAMMAR )
|
|
*/
|
|
TypeofExpression parseTypeofExpression()
|
|
{
|
|
auto node = new TypeofExpression;
|
|
expect(TokenType.typeof_);
|
|
expect(TokenType.lParen);
|
|
if (tokens[index] == TokenType.return_)
|
|
node.return_ = tokens[index];
|
|
else
|
|
node.expression = parseExpression();
|
|
expect(TokenType.rParen);
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses an UnaryExpression
|
|
*
|
|
* $(GRAMMAR )
|
|
*/
|
|
UnaryExpression parseUnaryExpression()
|
|
{
|
|
auto node = new UnaryExpression;
|
|
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses an UnionDeclaration
|
|
*
|
|
* $(GRAMMAR )
|
|
*/
|
|
UnionDeclaration parseUnionDeclaration()
|
|
{
|
|
auto node = new UnionDeclaration;
|
|
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses an Unittest
|
|
*
|
|
* $(GRAMMAR )
|
|
*/
|
|
Unittest parseUnittest()
|
|
{
|
|
auto node = new Unittest;
|
|
expect(TokenType.unittest_);
|
|
node.blockStatement = parseBlockStatement();
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses a VariableDeclaration
|
|
*
|
|
* $(GRAMMAR )
|
|
*/
|
|
VariableDeclaration parseVariableDeclaration()
|
|
{
|
|
auto node = new VariableDeclaration;
|
|
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses a VersionCondition
|
|
*
|
|
* $(GRAMMAR versionCondition: 'version' '(' (IntegerLiteral | Identifier | 'unittest' | 'assert') ')'
|
|
* ;)
|
|
*/
|
|
VersionCondition parseVersionCondition()
|
|
{
|
|
auto node = new VersionCondition;
|
|
expect(TokenType.version_);
|
|
expect(TokenType.lParen);
|
|
if (currentIsOneOf(TokenType.intLiteral, TokenType.identifier,
|
|
TokenType.unittest_, TokenType.assert_))
|
|
{
|
|
node.token = advance();
|
|
}
|
|
else
|
|
{
|
|
error(`Expected an integer literal, an identifier, "assert", or "unittest"`);
|
|
return null;
|
|
}
|
|
expect(TokenType.rParen);
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses a VersionSpecification
|
|
*
|
|
* $(GRAMMAR versionSpecification: 'version' '=' (Identifier | IntegerLiteral) ';'
|
|
* ;)
|
|
*/
|
|
VersionSpecification parseVersionSpecification()
|
|
{
|
|
auto node = new VersionSpecification;
|
|
expect(TokenType.version_);
|
|
expect(TokenType.assign);
|
|
if (!currentIsOneOf(TokenType.identifier, TokenType.intLiteral))
|
|
{
|
|
error("Identifier or integer literal expected");
|
|
return null;
|
|
}
|
|
node.token = advance();
|
|
expect(TokenType.semicolon);
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses an WhileStatement
|
|
*
|
|
* $(GRAMMAR whileStatement: 'while' '(' expression ')' statementNoCaseNoDefault
|
|
* ;)
|
|
*/
|
|
WhileStatement parseWhileStatement()
|
|
{
|
|
auto node = new WhileStatement;
|
|
expect(TokenType.while_);
|
|
expect(TokenType.lParen);
|
|
node.expression = parseExpression();
|
|
expect(TokenType.rParen);
|
|
node.statementNoCaseNoDefault = parseStatementNoCaseNoDefault();
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses an WithStatement
|
|
*
|
|
* $(GRAMMAR )
|
|
*/
|
|
WithStatement parseWithStatement()
|
|
{
|
|
auto node = new WithStatement;
|
|
expect(TokenType.with_);
|
|
expect(TokenType.lParen);
|
|
// magic here
|
|
expect(TokenType.rParen);
|
|
parseNonEmptyStatementNoCaseNoDefault();
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* Parses an XorExpression
|
|
*
|
|
* $(GRAMMAR )
|
|
*/
|
|
XorExpression parseXorExpression()
|
|
{
|
|
auto node = new XorExpression;
|
|
// TODO
|
|
return node;
|
|
}
|
|
|
|
void error(string message)
|
|
{
|
|
++errorCount;
|
|
import std.stdio;
|
|
stderr.writefln("%s(%d:%d): %s", fileName, tokens[index].line,
|
|
tokens[index].column, message);
|
|
while (index < tokens.length)
|
|
{
|
|
if (tokens[++index].type == TokenType.semicolon)
|
|
break;
|
|
}
|
|
}
|
|
|
|
Token* peekPast(alias O, alias C)()
|
|
in
|
|
{
|
|
assert (tokens[index].type == O);
|
|
}
|
|
body
|
|
{
|
|
int depth = 1;
|
|
auto i = index;
|
|
++i;
|
|
while (index < tokens.length)
|
|
{
|
|
if (tokens[i] == O)
|
|
++depth;
|
|
else if (tokens[i] == C)
|
|
{
|
|
--depth;
|
|
++i;
|
|
if (depth <= 0)
|
|
break;
|
|
}
|
|
++i;
|
|
}
|
|
return depth == 0 ? &tokens[i] : null;
|
|
}
|
|
|
|
Token* peekPastParens()
|
|
{
|
|
return peekPast!(TokenType.lParen, TokenType.rParen)();
|
|
}
|
|
|
|
Token* peekPastBrackets()
|
|
{
|
|
return peekPast!(TokenType.lBracket, TokenType.rBracket)();
|
|
}
|
|
|
|
Token* peekPastBraces()
|
|
{
|
|
return peekPast!(TokenType.lBrace, TokenType.rBrace)();
|
|
}
|
|
|
|
/**
|
|
* Returns a token of the specified type if it was the next token, otherwise
|
|
* calls the error function and returns null.
|
|
*/
|
|
Token* expect(TokenType type)
|
|
{
|
|
if (tokens[index].type == type)
|
|
return &tokens[index++];
|
|
else
|
|
{
|
|
error("Expected " ~ to!string(type));
|
|
return null;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Returns: the current token
|
|
*/
|
|
Token current()
|
|
{
|
|
return tokens[index];
|
|
}
|
|
|
|
/**
|
|
* Advances to the next token and returns the current token
|
|
*/
|
|
Token advance()
|
|
{
|
|
return tokens[index++];
|
|
}
|
|
|
|
/**
|
|
* Returns: true if the current token has the given type
|
|
*/
|
|
bool currentIs(TokenType type)
|
|
{
|
|
return tokens[index] == type;
|
|
}
|
|
|
|
/**
|
|
* Returns: true if the current token is one of the given types
|
|
*/
|
|
bool currentIsOneOf(TokenType[] types...)
|
|
{
|
|
return canFind(types, current().type);
|
|
}
|
|
|
|
bool startsWith(TokenType[] types...)
|
|
{
|
|
for (size_t i = 0; i != types.length; ++i)
|
|
{
|
|
if (tokens[index + i].type != types[i])
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Returns: true if there are more tokens
|
|
*/
|
|
bool moreTokens()
|
|
{
|
|
return index < tokens.length;
|
|
}
|
|
|
|
uint errorCount;
|
|
Token[] tokens;
|
|
size_t index;
|
|
string fileName;
|
|
}
|