mirror of
https://github.com/xomboverlord/ldc.git
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755 lines
20 KiB
C++
755 lines
20 KiB
C++
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// Compiler implementation of the D programming language
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// Copyright (c) 1999-2007 by Digital Mars
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// All Rights Reserved
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// written by Walter Bright
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// http://www.digitalmars.com
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// License for redistribution is by either the Artistic License
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// in artistic.txt, or the GNU General Public License in gnu.txt.
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// See the included readme.txt for details.
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#ifndef DMD_STATEMENT_H
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#define DMD_STATEMENT_H
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#ifdef __DMC__
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#pragma once
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#endif /* __DMC__ */
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#include "root.h"
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#include "arraytypes.h"
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#include "dsymbol.h"
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#include "lexer.h"
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struct OutBuffer;
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struct Scope;
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struct Expression;
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struct LabelDsymbol;
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struct Identifier;
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struct IfStatement;
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struct DeclarationStatement;
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struct DefaultStatement;
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struct VarDeclaration;
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struct Condition;
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struct Module;
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struct Token;
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struct InlineCostState;
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struct InlineDoState;
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struct InlineScanState;
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struct ReturnStatement;
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struct CompoundStatement;
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struct Argument;
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struct StaticAssert;
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struct AsmStatement;
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struct GotoStatement;
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struct ScopeStatement;
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struct TryCatchStatement;
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struct HdrGenState;
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struct InterState;
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enum TOK;
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namespace llvm
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{
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class Value;
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class BasicBlock;
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}
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// Back end
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struct IRState;
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struct Blockx;
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#if IN_GCC
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union tree_node; typedef union tree_node block;
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union tree_node; typedef union tree_node elem;
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#else
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struct block;
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struct elem;
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#endif
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struct code;
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struct Statement : Object
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{
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Loc loc;
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Statement(Loc loc);
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virtual Statement *syntaxCopy();
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void print();
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char *toChars();
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void error(const char *format, ...);
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virtual void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
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virtual TryCatchStatement *isTryCatchStatement() { return NULL; }
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virtual GotoStatement *isGotoStatement() { return NULL; }
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virtual AsmStatement *isAsmStatement() { return NULL; }
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#ifdef _DH
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int incontract;
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#endif
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virtual ScopeStatement *isScopeStatement() { return NULL; }
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virtual Statement *semantic(Scope *sc);
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Statement *semanticScope(Scope *sc, Statement *sbreak, Statement *scontinue);
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virtual int hasBreak();
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virtual int hasContinue();
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virtual int usesEH();
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virtual int fallOffEnd();
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virtual int comeFrom();
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virtual void scopeCode(Statement **sentry, Statement **sexit, Statement **sfinally);
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virtual Statements *flatten(Scope *sc);
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virtual Expression *interpret(InterState *istate);
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virtual int inlineCost(InlineCostState *ics);
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virtual Expression *doInline(InlineDoState *ids);
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virtual Statement *inlineScan(InlineScanState *iss);
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// Back end
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virtual void toIR(IRState *irs);
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// Avoid dynamic_cast
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virtual DeclarationStatement *isDeclarationStatement() { return NULL; }
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virtual CompoundStatement *isCompoundStatement() { return NULL; }
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virtual ReturnStatement *isReturnStatement() { return NULL; }
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virtual IfStatement *isIfStatement() { return NULL; }
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};
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struct ExpStatement : Statement
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{
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Expression *exp;
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ExpStatement(Loc loc, Expression *exp);
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Statement *syntaxCopy();
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void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
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Statement *semantic(Scope *sc);
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Expression *interpret(InterState *istate);
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int fallOffEnd();
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int inlineCost(InlineCostState *ics);
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Expression *doInline(InlineDoState *ids);
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Statement *inlineScan(InlineScanState *iss);
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void toIR(IRState *irs);
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};
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struct CompileStatement : Statement
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{
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Expression *exp;
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CompileStatement(Loc loc, Expression *exp);
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Statement *syntaxCopy();
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void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
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Statement *semantic(Scope *sc);
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};
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struct DeclarationStatement : ExpStatement
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{
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// Doing declarations as an expression, rather than a statement,
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// makes inlining functions much easier.
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DeclarationStatement(Loc loc, Dsymbol *s);
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DeclarationStatement(Loc loc, Expression *exp);
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Statement *syntaxCopy();
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void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
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void scopeCode(Statement **sentry, Statement **sexit, Statement **sfinally);
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DeclarationStatement *isDeclarationStatement() { return this; }
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};
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struct CompoundStatement : Statement
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{
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Statements *statements;
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CompoundStatement(Loc loc, Statements *s);
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CompoundStatement(Loc loc, Statement *s1, Statement *s2);
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Statement *syntaxCopy();
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void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
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Statement *semantic(Scope *sc);
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int usesEH();
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int fallOffEnd();
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int comeFrom();
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Statements *flatten(Scope *sc);
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ReturnStatement *isReturnStatement();
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Expression *interpret(InterState *istate);
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int inlineCost(InlineCostState *ics);
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Expression *doInline(InlineDoState *ids);
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Statement *inlineScan(InlineScanState *iss);
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void toIR(IRState *irs);
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CompoundStatement *isCompoundStatement() { return this; }
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};
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/* The purpose of this is so that continue will go to the next
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* of the statements, and break will go to the end of the statements.
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*/
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struct UnrolledLoopStatement : Statement
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{
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Statements *statements;
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UnrolledLoopStatement(Loc loc, Statements *statements);
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Statement *syntaxCopy();
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Statement *semantic(Scope *sc);
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int hasBreak();
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int hasContinue();
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int usesEH();
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int fallOffEnd();
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int comeFrom();
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Expression *interpret(InterState *istate);
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void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
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int inlineCost(InlineCostState *ics);
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Expression *doInline(InlineDoState *ids);
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Statement *inlineScan(InlineScanState *iss);
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void toIR(IRState *irs);
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};
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struct ScopeStatement : Statement
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{
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Statement *statement;
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ScopeStatement(Loc loc, Statement *s);
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Statement *syntaxCopy();
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void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
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ScopeStatement *isScopeStatement() { return this; }
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Statement *semantic(Scope *sc);
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int hasBreak();
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int hasContinue();
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int usesEH();
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int fallOffEnd();
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int comeFrom();
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Expression *interpret(InterState *istate);
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Statement *inlineScan(InlineScanState *iss);
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void toIR(IRState *irs);
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};
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struct WhileStatement : Statement
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{
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Expression *condition;
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Statement *body;
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WhileStatement(Loc loc, Expression *c, Statement *b);
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Statement *syntaxCopy();
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Statement *semantic(Scope *sc);
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int hasBreak();
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int hasContinue();
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int usesEH();
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int fallOffEnd();
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int comeFrom();
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Expression *interpret(InterState *istate);
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void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
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Statement *inlineScan(InlineScanState *iss);
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void toIR(IRState *irs);
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};
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struct DoStatement : Statement
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{
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Statement *body;
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Expression *condition;
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DoStatement(Loc loc, Statement *b, Expression *c);
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Statement *syntaxCopy();
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Statement *semantic(Scope *sc);
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int hasBreak();
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int hasContinue();
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int usesEH();
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int fallOffEnd();
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int comeFrom();
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Expression *interpret(InterState *istate);
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void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
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Statement *inlineScan(InlineScanState *iss);
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void toIR(IRState *irs);
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};
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struct ForStatement : Statement
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{
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Statement *init;
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Expression *condition;
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Expression *increment;
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Statement *body;
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ForStatement(Loc loc, Statement *init, Expression *condition, Expression *increment, Statement *body);
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Statement *syntaxCopy();
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Statement *semantic(Scope *sc);
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void scopeCode(Statement **sentry, Statement **sexit, Statement **sfinally);
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int hasBreak();
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int hasContinue();
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int usesEH();
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int fallOffEnd();
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int comeFrom();
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Expression *interpret(InterState *istate);
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void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
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Statement *inlineScan(InlineScanState *iss);
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void toIR(IRState *irs);
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};
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struct ForeachStatement : Statement
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{
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enum TOK op; // TOKforeach or TOKforeach_reverse
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Arguments *arguments; // array of Argument*'s
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Expression *aggr;
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Statement *body;
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VarDeclaration *key;
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VarDeclaration *value;
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FuncDeclaration *func; // function we're lexically in
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Array cases; // put breaks, continues, gotos and returns here
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Array gotos; // forward referenced goto's go here
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ForeachStatement(Loc loc, enum TOK op, Arguments *arguments, Expression *aggr, Statement *body);
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Statement *syntaxCopy();
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Statement *semantic(Scope *sc);
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int hasBreak();
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int hasContinue();
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int usesEH();
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int fallOffEnd();
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int comeFrom();
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Expression *interpret(InterState *istate);
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void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
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Statement *inlineScan(InlineScanState *iss);
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void toIR(IRState *irs);
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};
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struct IfStatement : Statement
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{
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Argument *arg;
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Expression *condition;
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Statement *ifbody;
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Statement *elsebody;
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VarDeclaration *match; // for MatchExpression results
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IfStatement(Loc loc, Argument *arg, Expression *condition, Statement *ifbody, Statement *elsebody);
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Statement *syntaxCopy();
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Statement *semantic(Scope *sc);
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Expression *interpret(InterState *istate);
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void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
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int usesEH();
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int fallOffEnd();
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IfStatement *isIfStatement() { return this; }
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int inlineCost(InlineCostState *ics);
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Expression *doInline(InlineDoState *ids);
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Statement *inlineScan(InlineScanState *iss);
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void toIR(IRState *irs);
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};
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struct ConditionalStatement : Statement
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{
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Condition *condition;
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Statement *ifbody;
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Statement *elsebody;
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ConditionalStatement(Loc loc, Condition *condition, Statement *ifbody, Statement *elsebody);
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Statement *syntaxCopy();
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Statement *semantic(Scope *sc);
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Statements *flatten(Scope *sc);
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int usesEH();
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void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
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};
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struct PragmaStatement : Statement
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{
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Identifier *ident;
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Expressions *args; // array of Expression's
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Statement *body;
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PragmaStatement(Loc loc, Identifier *ident, Expressions *args, Statement *body);
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Statement *syntaxCopy();
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Statement *semantic(Scope *sc);
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int usesEH();
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int fallOffEnd();
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void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
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};
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struct StaticAssertStatement : Statement
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{
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StaticAssert *sa;
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StaticAssertStatement(StaticAssert *sa);
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Statement *syntaxCopy();
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Statement *semantic(Scope *sc);
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void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
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};
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struct SwitchStatement : Statement
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{
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Expression *condition;
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Statement *body;
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DefaultStatement *sdefault;
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Array gotoCases; // array of unresolved GotoCaseStatement's
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Array *cases; // array of CaseStatement's
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int hasNoDefault; // !=0 if no default statement
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SwitchStatement(Loc loc, Expression *c, Statement *b);
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Statement *syntaxCopy();
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Statement *semantic(Scope *sc);
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int hasBreak();
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int usesEH();
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int fallOffEnd();
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Expression *interpret(InterState *istate);
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void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
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Statement *inlineScan(InlineScanState *iss);
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void toIR(IRState *irs);
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};
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struct CaseStatement : Statement
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{
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Expression *exp;
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Statement *statement;
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int index; // which case it is (since we sort this)
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block *cblock; // back end: label for the block
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CaseStatement(Loc loc, Expression *exp, Statement *s);
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Statement *syntaxCopy();
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Statement *semantic(Scope *sc);
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int compare(Object *obj);
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int usesEH();
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int fallOffEnd();
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int comeFrom();
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Expression *interpret(InterState *istate);
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void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
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Statement *inlineScan(InlineScanState *iss);
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void toIR(IRState *irs);
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};
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struct DefaultStatement : Statement
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{
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Statement *statement;
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#if IN_GCC
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block *cblock; // back end: label for the block
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#endif
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DefaultStatement(Loc loc, Statement *s);
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Statement *syntaxCopy();
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Statement *semantic(Scope *sc);
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int usesEH();
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int fallOffEnd();
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int comeFrom();
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Expression *interpret(InterState *istate);
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void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
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Statement *inlineScan(InlineScanState *iss);
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void toIR(IRState *irs);
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};
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struct GotoDefaultStatement : Statement
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{
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SwitchStatement *sw;
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GotoDefaultStatement(Loc loc);
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Statement *syntaxCopy();
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Statement *semantic(Scope *sc);
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Expression *interpret(InterState *istate);
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int fallOffEnd();
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void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
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void toIR(IRState *irs);
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};
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struct GotoCaseStatement : Statement
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{
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Expression *exp; // NULL, or which case to goto
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CaseStatement *cs; // case statement it resolves to
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GotoCaseStatement(Loc loc, Expression *exp);
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Statement *syntaxCopy();
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Statement *semantic(Scope *sc);
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Expression *interpret(InterState *istate);
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int fallOffEnd();
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void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
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void toIR(IRState *irs);
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};
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struct SwitchErrorStatement : Statement
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{
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SwitchErrorStatement(Loc loc);
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int fallOffEnd();
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void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
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void toIR(IRState *irs);
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};
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struct ReturnStatement : Statement
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{
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Expression *exp;
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ReturnStatement(Loc loc, Expression *exp);
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Statement *syntaxCopy();
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void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
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Statement *semantic(Scope *sc);
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int fallOffEnd();
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Expression *interpret(InterState *istate);
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int inlineCost(InlineCostState *ics);
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Expression *doInline(InlineDoState *ids);
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Statement *inlineScan(InlineScanState *iss);
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void toIR(IRState *irs);
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ReturnStatement *isReturnStatement() { return this; }
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};
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struct BreakStatement : Statement
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{
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Identifier *ident;
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BreakStatement(Loc loc, Identifier *ident);
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Statement *syntaxCopy();
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Statement *semantic(Scope *sc);
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Expression *interpret(InterState *istate);
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int fallOffEnd();
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void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
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void toIR(IRState *irs);
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};
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struct ContinueStatement : Statement
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{
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Identifier *ident;
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ContinueStatement(Loc loc, Identifier *ident);
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Statement *syntaxCopy();
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Statement *semantic(Scope *sc);
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Expression *interpret(InterState *istate);
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int fallOffEnd();
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void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
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void toIR(IRState *irs);
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};
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struct SynchronizedStatement : Statement
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{
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Expression *exp;
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Statement *body;
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SynchronizedStatement(Loc loc, Expression *exp, Statement *body);
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Statement *syntaxCopy();
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Statement *semantic(Scope *sc);
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int hasBreak();
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int hasContinue();
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int usesEH();
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int fallOffEnd();
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void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
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Statement *inlineScan(InlineScanState *iss);
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// Back end
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elem *esync;
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SynchronizedStatement(Loc loc, elem *esync, Statement *body);
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void toIR(IRState *irs);
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};
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struct WithStatement : Statement
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{
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Expression *exp;
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Statement *body;
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VarDeclaration *wthis;
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WithStatement(Loc loc, Expression *exp, Statement *body);
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Statement *syntaxCopy();
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Statement *semantic(Scope *sc);
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void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
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int usesEH();
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int fallOffEnd();
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Statement *inlineScan(InlineScanState *iss);
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void toIR(IRState *irs);
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};
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struct TryCatchStatement : Statement
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{
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Statement *body;
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Array *catches;
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TryCatchStatement(Loc loc, Statement *body, Array *catches);
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Statement *syntaxCopy();
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Statement *semantic(Scope *sc);
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int hasBreak();
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int usesEH();
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int fallOffEnd();
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Statement *inlineScan(InlineScanState *iss);
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void toIR(IRState *irs);
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void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
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|
TryCatchStatement *isTryCatchStatement() { return this; }
|
|
};
|
|
|
|
struct Catch : Object
|
|
{
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|
Loc loc;
|
|
Type *type;
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|
Identifier *ident;
|
|
VarDeclaration *var;
|
|
Statement *handler;
|
|
|
|
Catch(Loc loc, Type *t, Identifier *id, Statement *handler);
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|
Catch *syntaxCopy();
|
|
void semantic(Scope *sc);
|
|
void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
|
|
};
|
|
|
|
struct TryFinallyStatement : Statement
|
|
{
|
|
Statement *body;
|
|
Statement *finalbody;
|
|
|
|
TryFinallyStatement(Loc loc, Statement *body, Statement *finalbody);
|
|
Statement *syntaxCopy();
|
|
void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
|
|
Statement *semantic(Scope *sc);
|
|
int hasBreak();
|
|
int hasContinue();
|
|
int usesEH();
|
|
int fallOffEnd();
|
|
|
|
Statement *inlineScan(InlineScanState *iss);
|
|
|
|
void toIR(IRState *irs);
|
|
};
|
|
|
|
struct OnScopeStatement : Statement
|
|
{
|
|
TOK tok;
|
|
Statement *statement;
|
|
|
|
OnScopeStatement(Loc loc, TOK tok, Statement *statement);
|
|
Statement *syntaxCopy();
|
|
void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
|
|
Statement *semantic(Scope *sc);
|
|
int usesEH();
|
|
void scopeCode(Statement **sentry, Statement **sexit, Statement **sfinally);
|
|
|
|
void toIR(IRState *irs);
|
|
};
|
|
|
|
struct ThrowStatement : Statement
|
|
{
|
|
Expression *exp;
|
|
|
|
ThrowStatement(Loc loc, Expression *exp);
|
|
Statement *syntaxCopy();
|
|
Statement *semantic(Scope *sc);
|
|
void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
|
|
int fallOffEnd();
|
|
|
|
Statement *inlineScan(InlineScanState *iss);
|
|
|
|
void toIR(IRState *irs);
|
|
};
|
|
|
|
struct VolatileStatement : Statement
|
|
{
|
|
Statement *statement;
|
|
|
|
VolatileStatement(Loc loc, Statement *statement);
|
|
Statement *syntaxCopy();
|
|
Statement *semantic(Scope *sc);
|
|
Statements *flatten(Scope *sc);
|
|
int fallOffEnd();
|
|
void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
|
|
|
|
Statement *inlineScan(InlineScanState *iss);
|
|
|
|
void toIR(IRState *irs);
|
|
};
|
|
|
|
struct GotoStatement : Statement
|
|
{
|
|
Identifier *ident;
|
|
LabelDsymbol *label;
|
|
TryFinallyStatement *tf;
|
|
|
|
GotoStatement(Loc loc, Identifier *ident);
|
|
Statement *syntaxCopy();
|
|
Statement *semantic(Scope *sc);
|
|
int fallOffEnd();
|
|
Expression *interpret(InterState *istate);
|
|
|
|
void toIR(IRState *irs);
|
|
void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
|
|
GotoStatement *isGotoStatement() { return this; }
|
|
};
|
|
|
|
struct LabelStatement : Statement
|
|
{
|
|
Identifier *ident;
|
|
Statement *statement;
|
|
TryFinallyStatement *tf;
|
|
block *lblock; // back end
|
|
int isReturnLabel;
|
|
|
|
LabelStatement(Loc loc, Identifier *ident, Statement *statement);
|
|
Statement *syntaxCopy();
|
|
Statement *semantic(Scope *sc);
|
|
Statements *flatten(Scope *sc);
|
|
int usesEH();
|
|
int fallOffEnd();
|
|
int comeFrom();
|
|
Expression *interpret(InterState *istate);
|
|
void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
|
|
|
|
Statement *inlineScan(InlineScanState *iss);
|
|
|
|
void toIR(IRState *irs);
|
|
|
|
llvm::BasicBlock* llvmBB;
|
|
};
|
|
|
|
struct LabelDsymbol : Dsymbol
|
|
{
|
|
LabelStatement *statement;
|
|
#if IN_GCC
|
|
unsigned asmLabelNum; // GCC-specific
|
|
#endif
|
|
|
|
LabelDsymbol(Identifier *ident);
|
|
LabelDsymbol *isLabel();
|
|
};
|
|
|
|
struct AsmStatement : Statement
|
|
{
|
|
Token *tokens;
|
|
code *asmcode;
|
|
unsigned asmalign; // alignment of this statement
|
|
unsigned refparam; // !=0 if function parameter is referenced
|
|
unsigned naked; // !=0 if function is to be naked
|
|
unsigned regs; // mask of registers modified
|
|
|
|
AsmStatement(Loc loc, Token *tokens);
|
|
Statement *syntaxCopy();
|
|
Statement *semantic(Scope *sc);
|
|
int comeFrom();
|
|
|
|
void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
|
|
virtual AsmStatement *isAsmStatement() { return this; }
|
|
|
|
void toIR(IRState *irs);
|
|
};
|
|
|
|
#endif /* DMD_STATEMENT_H */
|