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Chapter 22.2

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This commit is contained in:
Tom Willemse 2021-10-21 20:18:48 -07:00
parent df1985ae84
commit 42a7e26292
1 changed files with 16 additions and 0 deletions
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16
clox/src/compiler.c
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@ -149,6 +149,10 @@ static void endCompiler() {
#endif
}
static void beginScope() { current->scopeDepth++; }
static void endScope() { current->scopeDepth--; }
static void expression();
static void statement();
static void declaration();
@ -217,6 +221,14 @@ static void literal(bool canAssign) {
static void expression() { parsePrecedence(PREC_ASSIGNMENT); }
static void block() {
while (!check(TOKEN_RIGHT_BRACE) && !check(TOKEN_EOF)) {
declaration();
}
consume(TOKEN_RIGHT_BRACE, "Expect '}' after block.");
}
static void varDeclaration() {
uint8_t global = parseVariable("Expect variable name.");
@ -280,6 +292,10 @@ static void declaration() {
static void statement() {
if (match(TOKEN_PRINT)) {
printStatement();
} else if (match(TOKEN_LEFT_BRACE)) {
beginScope();
block();
endScope();
} else {
expressionStatement();
}