Commit Graph
1 Commits
Author SHA1 Message Date
Jon Ross-PerkinsandChandler Carruth 352fec1885 Add some coarse debug information to semantics. (#2382)
Example stack:

```
1.	node_stack_:
	0.	FunctionDefinitionStart
	1.	ReturnStatement -> node1
2.	node_block_stack_:
	0.	block0
	1.	block1
```

Example trace output:

```
*** SemanticsParseTreeHandler::Build Begin ***
Push 0: FunctionIntroducer
Push 1: DeclaredName
Push 2: ParameterListEnd
Pop 2: ParameterListEnd
Push 2: ParameterList
Pop 2: ParameterList
Pop 0: FunctionIntroducer
AddNode block0: FunctionDeclaration()
AddNode block0: BindName(ident0, node0)
AddNode block0: FunctionDefinition(node0, block1)
Push 0: FunctionDefinitionStart
Push 1: Literal -> IntegerLiteral
AddNode block1: IntegerLiteral(int0): node_xref1
Push 2: StatementEnd
Pop 2: StatementEnd
Pop 1: any (Literal) -> node0
Push 1: ReturnStatement -> ReturnExpression
AddNode block1: ReturnExpression(node0)
Pop 0: FunctionDefinitionStart
Push 0: FunctionDefinition
*** SemanticsParseTreeHandler::Build End ***
cross_reference_irs.size == 2,
cross_references = {
  node_xref0 = "xref(ir0, block0, node0)";
  node_xref1 = "xref(ir0, block0, node1)";
},
identifiers = {
  ident0 = "Foo";
},
integer_literals = {
  int0 = 0;
},
node_blocks = {
  block0 = {
    node0 = FunctionDeclaration();
    node1 = BindName(ident0, node0);
    node2 = FunctionDefinition(node0, block1);
  },
  block1 = {
    node0 = IntegerLiteral(int0): node_xref1;
    node1 = ReturnExpression(node0);
  },
}
```

Co-authored-by: Chandler Carruth <chandlerc@gmail.com>
2022-11-11 14:10:13 -08:00