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/*
* Copyright 2016 WebAssembly Community Group participants
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef WASM_AST_PARSER_LEXER_SHARED_H_
#define WASM_AST_PARSER_LEXER_SHARED_H_
#include <stdarg.h>
#include "wasm-ast.h"
#include "wasm-ast-lexer.h"
#include "wasm-common.h"
#define WASM_AST_PARSER_STYPE WasmToken
#define WASM_AST_PARSER_LTYPE WasmLocation
#define YYSTYPE WASM_AST_PARSER_STYPE
#define YYLTYPE WASM_AST_PARSER_LTYPE
#define WASM_INVALID_LINE_OFFSET ((size_t)~0)
struct WasmAllocator;
typedef struct WasmExprList {
WasmExpr* first;
WasmExpr* last;
size_t size;
} WasmExprList;
typedef struct WasmTextListNode {
WasmStringSlice text;
struct WasmTextListNode* next;
} WasmTextListNode;
typedef struct WasmTextList {
WasmTextListNode* first;
WasmTextListNode* last;
} WasmTextList;
typedef struct WasmExportedFunc {
WasmFunc* func;
WasmExport export_;
} WasmExportedFunc;
typedef enum WasmFuncFieldType {
WASM_FUNC_FIELD_TYPE_EXPRS,
WASM_FUNC_FIELD_TYPE_PARAM_TYPES,
WASM_FUNC_FIELD_TYPE_BOUND_PARAM,
WASM_FUNC_FIELD_TYPE_RESULT_TYPE,
WASM_FUNC_FIELD_TYPE_LOCAL_TYPES,
WASM_FUNC_FIELD_TYPE_BOUND_LOCAL,
} WasmFuncFieldType;
typedef struct WasmFuncField {
WasmFuncFieldType type;
union {
WasmExpr* first_expr;
WasmTypeVector types; /* WASM_FUNC_FIELD_TYPE_{PARAM,LOCAL}_TYPES */
WasmBoundType bound_type; /* WASM_FUNC_FIELD_TYPE_BOUND_{LOCAL, PARAM} */
WasmType result_type;
};
struct WasmFuncField* next;
} WasmFuncField;
typedef union WasmToken {
/* terminals */
WasmStringSlice text;
WasmType type;
WasmOpcode opcode;
WasmLiteral literal;
/* non-terminals */
/* some of these use pointers to keep the size of WasmToken down; copying the
tokens is a hotspot when parsing large files. */
uint32_t u32;
uint64_t u64;
WasmTextList text_list;
WasmTypeVector types;
WasmVar var;
WasmVarVector vars;
WasmExpr* expr;
WasmExprList expr_list;
WasmFuncField* func_fields;
WasmFunc* func;
WasmExportedFunc exported_func;
WasmSegment segment;
WasmSegmentVector segments;
WasmMemory memory;
WasmFuncSignature func_sig;
WasmFuncType func_type;
WasmImport* import;
WasmExport export_;
WasmExportMemory export_memory;
WasmModule* module;
WasmRawModule raw_module;
WasmConst const_;
WasmConstVector consts;
WasmCommand* command;
WasmCommandVector commands;
WasmScript script;
} WasmToken;
typedef struct WasmAstParser {
struct WasmAllocator* allocator;
WasmScript script;
WasmSourceErrorHandler* error_handler;
int errors;
} WasmAstParser;
WASM_EXTERN_C_BEGIN
struct WasmAllocator* wasm_ast_lexer_get_allocator(WasmAstLexer* lexer);
int wasm_ast_lexer_lex(union WasmToken*,
struct WasmLocation*,
WasmAstLexer*,
struct WasmAstParser*);
WasmResult wasm_ast_lexer_get_source_line(WasmAstLexer*,
const struct WasmLocation*,
size_t line_max_length,
char* line,
size_t* out_line_length,
int* out_column_offset);
void WASM_PRINTF_FORMAT(4, 5) wasm_ast_parser_error(struct WasmLocation*,
WasmAstLexer*,
struct WasmAstParser*,
const char*,
...);
void wasm_ast_format_error(WasmSourceErrorHandler*,
const struct WasmLocation*,
WasmAstLexer*,
const char* format,
va_list);
void wasm_destroy_exported_func(WasmAllocator*, WasmExportedFunc*);
void wasm_destroy_text_list(WasmAllocator*, WasmTextList*);
void wasm_destroy_func_fields(WasmAllocator*, WasmFuncField*);
WASM_EXTERN_C_END
#endif /* WASM_AST_PARSER_LEXER_SHARED_H_ */
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