mirror of
https://github.com/carbon-language/carbon-lang.git
synced 2026-09-24 22:02:23 +01:00
Jon Meow
6e5070de18
Notes versus what jsiek wrote:
- This adopts Bazel for building.
- System-local versions of bison/flex are used. I found https://github.com/jmillikin/rules_bison, but those print a lot of warnings (things like -Wsign-compare IIRC) which makes builds hard to read. Plus I think the underlying bison_cc_library rule didn't work, so this would really only get a hermetic bison/flex build (helpful, but didn't seem worth more time).
- I'm adding in a .bazeliskrc to push a somewhat more standard choice of bazel versions. I noticed I was getting unstable versions by default, possible Google-specific, but seemed good to include.
- The `-lpthread` kludge.
- Turn all of the examples into golden tests.
- Including adding a golden test rule.
- Fixed various style guide issues. For example:
- Fixing function names to be CamelCase instead of snake_case (https://google.github.io/styleguide/cppguide.html#Function_Names)
- Removed exception use (https://google.github.io/styleguide/cppguide.html#Exceptions)
- File name fixes (https://github.com/carbon-language/carbon-lang/blob/trunk/docs/project/cpp_style_guide.md#file-names)
- Dropped `using` of `std` names -- I believe this is preferred (maybe we should be explicit about this in the Carbon style guide)
- Switched `enum` uses to `enum class` for ease-of-identification.
- Spent some time breaking out files to hopefully be easier to read/edit pieces, and understand relations between structs.
- Added `code requires` to `syntax.ypp` to address include issues
Possibly other things -- but the fundamental structure is, I believe, unchanged. I put in the golden tests pretty early to ensure I wasn't mutating output/results.
107 lines
2.6 KiB
C++
107 lines
2.6 KiB
C++
// Part of the Carbon Language project, under the Apache License v2.0 with LLVM
|
|
// Exceptions. See /LICENSE for license information.
|
|
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
|
|
|
|
#ifndef EXECUTABLE_SEMANTICS_AST_EXPRESSION_H_
|
|
#define EXECUTABLE_SEMANTICS_AST_EXPRESSION_H_
|
|
|
|
#include <string>
|
|
#include <vector>
|
|
|
|
namespace Carbon {
|
|
|
|
enum class ExpressionKind {
|
|
AutoT,
|
|
BoolT,
|
|
Boolean,
|
|
Call,
|
|
FunctionT,
|
|
GetField,
|
|
Index,
|
|
IntT,
|
|
Integer,
|
|
PatternVariable,
|
|
PrimitiveOp,
|
|
Tuple,
|
|
TypeT,
|
|
Variable,
|
|
};
|
|
enum class Operator {
|
|
Add,
|
|
And,
|
|
Eq,
|
|
Neg,
|
|
Not,
|
|
Or,
|
|
Sub,
|
|
};
|
|
|
|
struct Expression {
|
|
int line_num;
|
|
ExpressionKind tag;
|
|
union {
|
|
struct {
|
|
std::string* name;
|
|
} variable;
|
|
struct {
|
|
Expression* aggregate;
|
|
std::string* field;
|
|
} get_field;
|
|
struct {
|
|
Expression* aggregate;
|
|
Expression* offset;
|
|
} index;
|
|
struct {
|
|
std::string* name;
|
|
Expression* type;
|
|
} pattern_variable;
|
|
int integer;
|
|
bool boolean;
|
|
struct {
|
|
std::vector<std::pair<std::string, Expression*>>* fields;
|
|
} tuple;
|
|
struct {
|
|
Operator op;
|
|
std::vector<Expression*>* arguments;
|
|
} primitive_op;
|
|
struct {
|
|
Expression* function;
|
|
Expression* argument;
|
|
} call;
|
|
struct {
|
|
Expression* parameter;
|
|
Expression* return_type;
|
|
} function_type;
|
|
} u;
|
|
};
|
|
|
|
auto MakeVar(int line_num, std::string var) -> Expression*;
|
|
auto MakeVarPat(int line_num, std::string var, Expression* type) -> Expression*;
|
|
auto MakeInt(int line_num, int i) -> Expression*;
|
|
auto MakeBool(int line_num, bool b) -> Expression*;
|
|
auto MakeOp(int line_num, Operator op, std::vector<Expression*>* args)
|
|
-> Expression*;
|
|
auto MakeUnOp(int line_num, enum Operator op, Expression* arg) -> Expression*;
|
|
auto MakeBinOp(int line_num, enum Operator op, Expression* arg1,
|
|
Expression* arg2) -> Expression*;
|
|
auto MakeCall(int line_num, Expression* fun, Expression* arg) -> Expression*;
|
|
auto MakeGetField(int line_num, Expression* exp, std::string field)
|
|
-> Expression*;
|
|
auto MakeTuple(int line_num,
|
|
std::vector<std::pair<std::string, Expression*>>* args)
|
|
-> Expression*;
|
|
auto MakeIndex(int line_num, Expression* exp, Expression* i) -> Expression*;
|
|
|
|
auto MakeTypeType(int line_num) -> Expression*;
|
|
auto MakeIntType(int line_num) -> Expression*;
|
|
auto MakeBoolType(int line_num) -> Expression*;
|
|
auto MakeFunType(int line_num, Expression* param, Expression* ret)
|
|
-> Expression*;
|
|
auto MakeAutoType(int line_num) -> Expression*;
|
|
|
|
void PrintExp(Expression* exp);
|
|
|
|
} // namespace Carbon
|
|
|
|
#endif // EXECUTABLE_SEMANTICS_AST_EXPRESSION_H_
|