1a65c491be
With this patch, we're able to parse smaller chunks of C++ code (statement, declaration), rather than translation-unit. The start symbol is listed in the grammar in a form of `_ := statement`, each start symbol has a dedicated state (`_ := • statement`). We create and track all these separate states in the LRTable. When we start parsing, we lookup the corresponding state to start the parser. LR pasing table changes with this patch: - number of states: 1467 -> 1471 - number of actions: 82891 -> 83578 - size of the table (bytes): 334248 -> 336996 Differential Revision: https://reviews.llvm.org/D125006
10 lines
471 B
C++
10 lines
471 B
C++
// RUN: clang-pseudo -grammar=%cxx-bnf-file -source=%s --start-symbol=statement-seq --print-forest | FileCheck %s
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a + a;
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// CHECK: statement-seq~expression-statement := expression ;
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// CHECK-NEXT: ├─expression~additive-expression := additive-expression + multiplicative-expression
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// CHECK-NEXT: │ ├─additive-expression~IDENTIFIER :=
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// CHECK-NEXT: │ ├─+ :=
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// CHECK-NEXT: │ └─multiplicative-expression~IDENTIFIER :=
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// CHECK-NEXT: └─; :=
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