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symbol: Add operator<() 

Change-Id: I8e3eafd775a3aaa20cf8425e45f5bcae1e9e9851
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/60206
Commit-Queue: Ben Clayton <bclayton@google.com>
Kokoro: Ben Clayton <bclayton@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Antonio Maiorano <amaiorano@google.com>
This commit is contained in:
Ben Clayton 2021-07-29 19:55:35 +00:00 committed by Tint LUCI CQ
parent fb91e3c8f3
commit 13969024c9
2 changed files with 11 additions and 0 deletions
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6
src/symbol.cc
View File

@ -37,6 +37,12 @@ bool Symbol::operator==(const Symbol& other) const {
return val_ == other.val_; return val_ == other.val_;
} }
bool Symbol::operator<(const Symbol& other) const {
TINT_ASSERT_PROGRAM_IDS_EQUAL_IF_VALID(Symbol, program_id_,
other.program_id_);
return val_ < other.val_;
}
std::string Symbol::to_str() const { std::string Symbol::to_str() const {
return "$" + std::to_string(val_); return "$" + std::to_string(val_);
} }

5
src/symbol.h
View File

@ -54,6 +54,11 @@ class Symbol {
/// @returns true if the symbols are the same /// @returns true if the symbols are the same
bool operator==(const Symbol& o) const; bool operator==(const Symbol& o) const;
/// Less-than operator
/// @param o the other symbol
/// @returns true if this symbol is ordered before symbol `o`
bool operator<(const Symbol& o) const;
/// @returns true if the symbol is valid /// @returns true if the symbol is valid
bool IsValid() const { return val_ != static_cast<uint32_t>(-1); } bool IsValid() const { return val_ != static_cast<uint32_t>(-1); }