rust/mk/grammar.mk
Steve Klabnik f78115434c Make lexer tooling message more generic
We don't actually probe for javac in all circumstances, so if you have
javac installed, but don't have antlr4 installed, and you're on Mac OS
X, then you'll get a message that javac is missing, even though that's
wrong.

To fix this, let's just be a bit more generic in the message, so that
it's the same no matter what part of the lexer tests you're missing.

cc
https://www.reddit.com/r/rust/comments/3m199d/running_make_check_on_the_source_code_says_javac/
2015-09-23 11:43:49 -04:00

118 lines
3.1 KiB
Makefile

# Copyright 2014 The Rust Project Developers. See the COPYRIGHT
# file at the top-level directory of this distribution and at
# http://rust-lang.org/COPYRIGHT.
#
# Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
# http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
# <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
# option. This file may not be copied, modified, or distributed
# except according to those terms.
BG = $(CFG_BUILD_DIR)/grammar/
SG = $(S)src/grammar/
B = $(CFG_BUILD_DIR)/$(CFG_BUILD)/stage2/
L = $(B)lib/rustlib/$(CFG_BUILD)/lib
LD = $(CFG_BUILD)/stage2/lib/rustlib/$(CFG_BUILD)/lib/
RUSTC = $(STAGE2_T_$(CFG_BUILD)_H_$(CFG_BUILD))
ifeq ($(CFG_OSTYPE),apple-darwin)
FLEX_LDFLAGS=-ll
else
FLEX_LDFLAGS=-lfl
endif
# Run the reference lexer against libsyntax and compare the tokens and spans.
# If "// ignore-lexer-test" is present in the file, it will be ignored.
#
# $(1) is the file to test.
define LEXER_TEST
grep "// ignore-lexer-test" $(1) ; \
if [ $$? -eq 1 ]; then \
CLASSPATH=$(B)grammar $(CFG_GRUN) RustLexer tokens -tokens < $(1) \
| $(B)grammar/verify $(1) ; \
fi
endef
$(BG):
$(Q)mkdir -p $(BG)
$(BG)RustLexer.class: $(BG) $(SG)RustLexer.g4
$(Q)$(CFG_ANTLR4) -o $(BG) $(SG)RustLexer.g4
$(Q)$(CFG_JAVAC) -d $(BG) $(BG)RustLexer.java
check-build-lexer-verifier: $(BG)verify
ifeq ($(NO_REBUILD),)
VERIFY_DEPS := rustc-stage2-H-$(CFG_BUILD) $(LD)stamp.rustc
else
VERIFY_DEPS :=
endif
$(BG)verify: $(BG) $(SG)verify.rs $(VERIFY_DEPS)
$(Q)$(RUSTC) --out-dir $(BG) -L $(L) $(SG)verify.rs
ifdef CFG_JAVAC
ifdef CFG_ANTLR4
ifdef CFG_GRUN
check-lexer: $(BG) $(BG)RustLexer.class check-build-lexer-verifier
$(info Verifying libsyntax against the reference lexer ...)
$(Q)$(SG)check.sh $(S) "$(BG)" \
"$(CFG_GRUN)" "$(BG)verify" "$(BG)RustLexer.tokens"
else
$(info cfg: lexer tooling not available, skipping lexer test...)
check-lexer:
endif
else
$(info cfg: lexer tooling not available, skipping lexer test...)
check-lexer:
endif
else
$(info cfg: lexer tooling not available, skipping lexer test...)
check-lexer:
endif
$(BG)lex.yy.c: $(SG)lexer.l $(BG)
@$(call E, flex: $@)
$(Q)$(CFG_FLEX) -o $@ $<
$(BG)lexer-lalr.o: $(BG)lex.yy.c $(BG)parser-lalr.tab.h
@$(call E, cc: $@)
$(Q)$(CFG_CC) -include $(BG)parser-lalr.tab.h -c -o $@ $<
$(BG)parser-lalr.tab.c $(BG)parser-lalr.tab.h: $(SG)parser-lalr.y
@$(call E, bison: $@)
$(Q)$(CFG_BISON) $< --output=$(BG)parser-lalr.tab.c --defines=$(BG)parser-lalr.tab.h \
--name-prefix=rs --warnings=error=all
$(BG)parser-lalr.o: $(BG)parser-lalr.tab.c
@$(call E, cc: $@)
$(Q)$(CFG_CC) -c -o $@ $<
$(BG)parser-lalr-main.o: $(SG)parser-lalr-main.c
@$(call E, cc: $@)
$(Q)$(CFG_CC) -std=c99 -c -o $@ $<
$(BG)parser-lalr: $(BG)parser-lalr.o $(BG)parser-lalr-main.o $(BG)lexer-lalr.o
@$(call E, cc: $@)
$(Q)$(CFG_CC) -o $@ $^ $(FLEX_LDFLAGS)
ifdef CFG_FLEX
ifdef CFG_BISON
check-grammar: $(BG) $(BG)parser-lalr
$(info Verifying grammar ...)
$(SG)testparser.py -p $(BG)parser-lalr -s $(S)src
else
$(info cfg: bison not available, skipping parser test...)
check-grammar:
endif
else
$(info cfg: flex not available, skipping parser test...)
check-grammar:
endif