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Improve error detection of nullish coalescing operator (#4179)

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Also rename LEXER_IS_BINARY_LVALUE_TOKEN to LEXER_IS_BINARY_LVALUE_OP_TOKEN
because its name is wrong.

JerryScript-DCO-1.0-Signed-off-by: Zoltan Herczeg zherczeg.u-szeged@partner.samsung.com
This commit is contained in:
Zoltan Herczeg
2020-09-07 14:43:41 +02:00
committed by GitHub
parent f03bf9074f
commit 2bc3111e31
3 changed files with 62 additions and 97 deletions
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jerry-core/parser/js/js-lexer.h
+26 -7
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@@ -69,18 +69,37 @@ typedef enum
* IMPORTANT: update CBC_BINARY_OP_TOKEN_TO_OPCODE,
* CBC_BINARY_LVALUE_OP_TOKEN_TO_OPCODE and
* parser_binary_precedence_table after changes. */
/**
* Index of first binary operation opcode.
*/
#define LEXER_FIRST_BINARY_OP LEXER_ASSIGN
#if ENABLED (JERRY_ESNEXT)
#define LEXER_IS_BINARY_OP_TOKEN(token_type) \
((token_type) >= LEXER_ASSIGN && (token_type) <= LEXER_EXPONENTIATION)
/**
* Index of last binary operation opcode.
*/
#define LEXER_LAST_BINARY_OP LEXER_EXPONENTIATION
#else /* !ENABLED (JERRY_ESNEXT) */
#define LEXER_IS_BINARY_OP_TOKEN(token_type) \
((token_type) >= LEXER_ASSIGN && (token_type) <= LEXER_MODULO)
/**
* Index of last binary operation opcode.
*/
#define LEXER_LAST_BINARY_OP LEXER_MODULO
#endif /* ENABLED (JERRY_ESNEXT) */
#define LEXER_IS_BINARY_LVALUE_TOKEN(token_type) \
/**
* Checks whether the token is a binary operation token.
*/
#define LEXER_IS_BINARY_OP_TOKEN(token_type) \
((token_type) >= LEXER_FIRST_BINARY_OP && (token_type) <= LEXER_LAST_BINARY_OP)
/**
* Checks whether the token is an lvalue (assignment) operation token.
*/
#define LEXER_IS_BINARY_LVALUE_OP_TOKEN(token_type) \
((token_type) >= LEXER_ASSIGN && (token_type) <= LEXER_ASSIGN_BIT_XOR)
#define LEXER_FIRST_BINARY_OP LEXER_ASSIGN
/**
* Checks whether the token is a non-lvalue (assignment) operation token.
*/
#define LEXER_IS_BINARY_NON_LVALUE_OP_TOKEN(token_type) \
((token_type) >= LEXER_QUESTION_MARK && (token_type) <= LEXER_LAST_BINARY_OP)
LEXER_ASSIGN, /**< "=" (prec: 3) */
LEXER_ASSIGN_ADD, /**< "+=" (prec: 3) */