Move common part to compiler.h
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@ -11,72 +11,8 @@
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* http://ph7.symisc.net/
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*/
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/* $SymiscID: compile.c v6.0 Win7 2012-08-18 05:11 stable <chm@symisc.net> $ */
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#include "ph7int.h"
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/*
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* This file implement a thread-safe and full-reentrant compiler for the PH7 engine.
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* That is, routines defined in this file takes a stream of tokens and output
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* PH7 bytecode instructions.
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*/
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/* Forward declaration */
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typedef struct LangConstruct LangConstruct;
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typedef struct JumpFixup JumpFixup;
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/* Block [i.e: set of statements] control flags */
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#define GEN_BLOCK_LOOP 0x001 /* Loop block [i.e: for,while,...] */
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#define GEN_BLOCK_PROTECTED 0x002 /* Protected block */
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#define GEN_BLOCK_COND 0x004 /* Conditional block [i.e: if(condition){} ]*/
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#define GEN_BLOCK_FUNC 0x008 /* Function body */
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#define GEN_BLOCK_GLOBAL 0x010 /* Global block (always set)*/
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#define GEN_BLOC_NESTED_FUNC 0x020 /* Nested function body */
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#define GEN_BLOCK_EXPR 0x040 /* Expression */
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#define GEN_BLOCK_STD 0x080 /* Standard block */
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#define GEN_BLOCK_EXCEPTION 0x100 /* Exception block [i.e: try{ } }*/
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#define GEN_BLOCK_SWITCH 0x200 /* Switch statement */
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/*
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* Compilation of some PHP constructs such as if, for, while, the logical or
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* (||) and logical and (&&) operators in expressions requires the
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* generation of forward jumps.
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* Since the destination PC target of these jumps isn't known when the jumps
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* are emitted, we record each forward jump in an instance of the following
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* structure. Those jumps are fixed later when the jump destination is resolved.
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*/
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struct JumpFixup {
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sxi32 nJumpType; /* Jump type. Either TRUE jump, FALSE jump or Unconditional jump */
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sxu32 nInstrIdx; /* Instruction index to fix later when the jump destination is resolved. */
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};
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/*
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* Each language construct is represented by an instance
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* of the following structure.
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*/
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struct LangConstruct {
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sxu32 nID; /* Language construct ID [i.e: PH7_TKWRD_WHILE,PH7_TKWRD_FOR,PH7_TKWRD_IF...] */
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ProcLangConstruct xConstruct; /* C function implementing the language construct */
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};
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/* Compilation flags */
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#define PH7_COMPILE_SINGLE_STMT 0x001 /* Compile a single statement */
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/* Token stream synchronization macros */
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#define SWAP_TOKEN_STREAM(GEN,START,END)\
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pTmp = GEN->pEnd;\
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pGen->pIn = START;\
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pGen->pEnd = END
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#define UPDATE_TOKEN_STREAM(GEN)\
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if( GEN->pIn < pTmp ){\
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GEN->pIn++;\
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}\
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GEN->pEnd = pTmp
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#define SWAP_DELIMITER(GEN,START,END)\
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pTmpIn = GEN->pIn;\
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pTmpEnd = GEN->pEnd;\
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GEN->pIn = START;\
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GEN->pEnd = END
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#define RE_SWAP_DELIMITER(GEN)\
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GEN->pIn = pTmpIn;\
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GEN->pEnd = pTmpEnd
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/* Flags related to expression compilation */
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#define EXPR_FLAG_LOAD_IDX_STORE 0x001 /* Set the iP2 flag when dealing with the LOAD_IDX instruction */
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#define EXPR_FLAG_RDONLY_LOAD 0x002 /* Read-only load, refer to the 'PH7_OP_LOAD' VM instruction for more information */
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#define EXPR_FLAG_COMMA_STATEMENT 0x004 /* Treat comma expression as a single statement (used by class attributes) */
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/* Forward declaration */
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static sxi32 PH7_CompileExpr(ph7_gen_state *pGen, sxi32 iFlags, sxi32(*xTreeValidator)(ph7_gen_state *, ph7_expr_node *));
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#include "compiler.h"
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/*
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* Fetch a block that correspond to the given criteria from the stack of
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* compiled blocks.
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@ -0,0 +1,77 @@
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#ifndef _COMPILER_H_
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#define _COMPILER_H_
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#include "ph7int.h"
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/* Forward declaration */
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typedef struct LangConstruct LangConstruct;
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typedef struct JumpFixup JumpFixup;
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/* Block [i.e: set of statements] control flags */
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#define GEN_BLOCK_LOOP 0x001 /* Loop block [i.e: for,while,...] */
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#define GEN_BLOCK_PROTECTED 0x002 /* Protected block */
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#define GEN_BLOCK_COND 0x004 /* Conditional block [i.e: if(condition){} ]*/
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#define GEN_BLOCK_FUNC 0x008 /* Function body */
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#define GEN_BLOCK_GLOBAL 0x010 /* Global block (always set)*/
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#define GEN_BLOC_NESTED_FUNC 0x020 /* Nested function body */
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#define GEN_BLOCK_EXPR 0x040 /* Expression */
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#define GEN_BLOCK_STD 0x080 /* Standard block */
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#define GEN_BLOCK_EXCEPTION 0x100 /* Exception block [i.e: try{ } }*/
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#define GEN_BLOCK_SWITCH 0x200 /* Switch statement */
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/*
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* Compilation of some Aer constructs such as if, for, while, the logical or
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* (||) and logical and (&&) operators in expressions requires the
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* generation of forward jumps.
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* Since the destination PC target of these jumps isn't known when the jumps
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* are emitted, we record each forward jump in an instance of the following
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* structure. Those jumps are fixed later when the jump destination is resolved.
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*/
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struct JumpFixup {
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sxi32 nJumpType; /* Jump type. Either TRUE jump, FALSE jump or Unconditional jump */
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sxu32 nInstrIdx; /* Instruction index to fix later when the jump destination is resolved. */
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};
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/*
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* Each language construct is represented by an instance
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* of the following structure.
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*/
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struct LangConstruct {
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sxu32 nID; /* Language construct ID [i.e: PH7_TKWRD_WHILE,PH7_TKWRD_FOR,PH7_TKWRD_IF...] */
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ProcLangConstruct xConstruct; /* C function implementing the language construct */
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};
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/* Compilation flags */
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#define PH7_COMPILE_SINGLE_STMT 0x001 /* Compile a single statement */
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/* Token stream synchronization macros */
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#define SWAP_TOKEN_STREAM(GEN,START,END)\
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pTmp = GEN->pEnd;\
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pGen->pIn = START;\
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pGen->pEnd = END
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#define UPDATE_TOKEN_STREAM(GEN)\
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if( GEN->pIn < pTmp ){\
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GEN->pIn++;\
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}\
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GEN->pEnd = pTmp
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#define SWAP_DELIMITER(GEN,START,END)\
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pTmpIn = GEN->pIn;\
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pTmpEnd = GEN->pEnd;\
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GEN->pIn = START;\
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GEN->pEnd = END
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#define RE_SWAP_DELIMITER(GEN)\
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GEN->pIn = pTmpIn;\
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GEN->pEnd = pTmpEnd
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/* Flags related to expression compilation */
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#define EXPR_FLAG_LOAD_IDX_STORE 0x001 /* Set the iP2 flag when dealing with the LOAD_IDX instruction */
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#define EXPR_FLAG_RDONLY_LOAD 0x002 /* Read-only load, refer to the 'PH7_OP_LOAD' VM instruction for more information */
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#define EXPR_FLAG_COMMA_STATEMENT 0x004 /* Treat comma expression as a single statement (used by class attributes) */
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/* Forward declaration */
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static sxi32 PH7_CompileExpr(ph7_gen_state *pGen, sxi32 iFlags, sxi32(*xTreeValidator)(ph7_gen_state *, ph7_expr_node *));
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#endif /* _COMPILER_H_ */
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